® designates a trademark of Henkel AG & Co. KGaA or its affiliates, registered in Germany and elsewhere © Henkel AG & Co. KGaA, 2010

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PublisherHenkel AG & Co. KGaAAdhesive TechnologiesHenkelstraße 6740191 DüsseldorfGermanywww.henkel.com Editorial DepartmentMarketing Communications: Christian Scholze Caroline Sach Jutta HaagAndreas Engl ContactJutta Haag (Project lead) Phone: +49-211-797-7304Jutta.Haag@henkel.com Creationblösch.partner Werbeagentur GmbHwww.bloesch-partner.de

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Read more on pages 8 – 11

Turn up the heat nobly – discover how stars’ ovens are handcrafted with tradition and best ingredients.

O f f i c i a l L o c t i t e ® C u s t o m e r M a g a z i n e no.

6 Precious seconds at the Dakar RallyWitness the ground breaking performance of the latest adhesive innovation on page 6.

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23

Cédric Berthod

Dear Readers,

It’s time for our update on the latest developments in the world of adhesives. It seems that we never run out of fascinating, unusual stories to tell, because Loctite® is used in such an amazing variety of contexts. This time, we went to Paris to take a look at the production of the world’s most exclusive oven and cookers: La Cornue of France is as symbolic in the kitchen as Rolls-Royce is on the motorway. But we also travelled to South America, to lend a hand and some Loctite® to the KAMAZ-master team during the Dakar Rally. Their amazing success was the best “Thank you” that we could hope for.

Loctite® engineers did not only look after the powerful KAMAZ trucks during the Dakar Rally, the new Loctite® instant adhesive 3090, contributed to the success of many other vehicles too. How we were able to do this is the subject of the article about our latest brainchild, Loctite® 3090.

“Only variety can destroy variety” – this is the quotation that appears in our trend report, to describe what is called the “Third Technological Revolution”. Another way to describe it would be the renaissance of adhesive technology. I think what the author means by this statement, is that only a technology as versatile and ingenious as engineering adhesive technology is able to replace it. This is what we work on every day here at Loctite®.

Now, all that’s left for me to say is: enjoy the variety of stories we have found for Loctite® applications and the future of adhesive technology.

Highlight: Dakar Rally 2010Experience how truck driver Vladimir Chagin and his KAMAZ-master team set up an all-time record at the 2010 Dakar Rally.

Reliability Report 8: AMGFew technological challenges are as demanding as manufacturing high-precision robotics for the aerospace industry. Except maybe bonding them.

Reliability Report 7: La CornueGain an exclusive insight into the manufacturing of legendary ovens – aspired by chefs and celebrities all over the world.

Handy HintsInsights online – discover the new possibilities of structural bonding and find your corresponding solution within seconds.

Trend ReportPeople have always combined things to create something new. Join us on an exciting journey through the history of joining.

RD&E insightsAdhesives play a decisive role in today’s medicine. Experience how Henkel solutions make medicine help save lives.

OutlookSome of the topics in the next issue of Loctite® at work.

Contents

Vice President and General Manager Henkel General Industry Europe

Yours sincerely,

Cédric Berthod

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| 3Editorial

The KAMAZ-master team was established 22 years ago by the Russian manufacturer of the same name. KAMAZ produces vehicles for transporting concrete mixers, construction materials, food products, etc. What is more, these vehicles are designed to be used in extreme conditions. KAMAZ trucks run in all kinds of climatic and geographical environments – from impassable areas in the Taiga to the quicksands of Africa.

Losing weight, looking betterKeeping in mind the requirements for rally and serial KAMAZ trucks, Loctite® engineers found solutions especially for the KAMAZ-master team.

Moving a heavy vehicle at high speeds, especially across difficult terrain, requires excellent aerodynamic

From a bird’s eye view, the desert seems devoid of all human life. Zooming in you can see a trail of dust rapidly moving down one of the high dunes. Enlarging the image still further, you can make out the details of a racing truck in blue and white. Suddenly, a second trail of dust appears from the other side of the dune. It is a Hummer. The Hummer starts to catch up, and for a moment the two vehicles are speeding side by side through the almost empty desert.

Though rich in spectacular images, it is the photo finish of the 7th stage of this year’s Dakar Rally that really stands out. The driver of the truck is called Vladimir Chagin, a living legend on the racing circuit. Chagin is the driver for the Russian KAMAZ-master team, one of the world’s most successful rally teams.

A Russian legend

The prime minister offers his congratulations …

… on the historic success at the 2010 Dakar …

… showing his appreciation for the entire KAMAZ-master team …

… and their success at the toughest rally in the world.

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|4 Highlight

The TsarKAMAZ driver Vladimir Chagin went on to win the Dakar Rally in his category in under 56 hours. Chagin is nicknamed the ‘Tsar’ in Russia, a moniker reminiscent of another sporting legend, the German footballer Franz Beckenbauer, known as the ‘Kaiser’ everywhere in his home country.

The similarity is no coincidence; like Beckenbauer, Chagin’s achievements in his field are difficult to match. During this year’s Dakar Rally Chagin set a record for winning the most stages in one race. Since this year’s event, the six-time Dakar winner also holds the record for winning the most stages overall – a success for KAMAZ and another job well done for Loctite®.

characteristics in the truck’s body, combined with enhanced structural rigidity. Using the Terokal  5045 bi-component adhesive during the installation of on-board panels and air inlets contributes to the increase of body rigidity in KAMAZ racing trucks. Team servicemen avoid additional welding and riveting works. Those combined efforts reduce the vehicles’ weight, improve their appearance and reduce fuel consumption.

For many years anaerobic products from the Loctite® line have been used to secure threaded joints in KAMAZ racing trucks. Traditional mechanical fixing methods like split pins and studs resulted in corrosion and dismantling problems. Such problems are crucial under racing conditions – technical support cars had to carry plenty of auxiliary equipment to repair minor damage. Loctite® products ensure that parts are resistant to vibration and corrosion, while at the same time reducing weight. Disassembling can be easily done under field conditions without sophisticated equipment.

It is this openness, this readiness to constantly develop and work with other top manufacturers like Henkel, that is part of the reason for KAMAZ’s success. The company itself has an interesting history: set up in the mid- sixties to produce a heavy-duty transport vehicle for Soviet transport needs, it has developed into a joint stock company that is successful on the global market.

All-time record champion Vladimir Chagin (far right) of the successful KAMAZ-master team proudly presents the 2010 Dakar trophy.

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| 5|Highlight

up to five mm. Along with the traditional benefits – an initial bond within seconds, a clear bondline, high strength and easy dispensing – any exposed adhesive remaining outside the joint will harden within 2–4 min. Thanks to Loctite® 3090, the Henkel specialists were able to deliver an instant solution in a situation where time was of the essence. Rodolfo Bolletero could continue the race without losing valuable minutes.

Quick solutions for urgent problemsHenkel launched the product at the beginning of the year, so it formed part of the toolkit that the three Loctite®

The devil is in the detail – that was the lesson Argentina’s motocross pilot Rodolfo Bolletero learned when the sidelight of his bike came unhinged during the 2010 Dakar Rally. The particular detail that could have become a real problem for Bolletero was a gap of just under five mm. This gap needed to be filled to reattach the sidelight to his KTM racer. Conventional instant adhesives are not able to fill gaps, and replacing the sidelight altogether would have meant a serious delay.

The solution came in the form of four simple digits – 3090. The new Loctite® 3090 instant adhesive can fill gaps of

Three Charlies for Rodolfo3090, the latest Loctite® innovation, shows what it can do in the world’s toughest rally

New Loctite® 3090 demonstrates high performance – even under extreme conditions.

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|6 Highlight

engineers accompanying the Dakar circus had on offer. The engineers, affectionately known as “Loctite® Charlies” by pilots and mechanics, were able to find quick solutions for urgent problems on many occasions during the race.

With Loctite®  3090 the “Charlies”, Jean Gaborit from France, Martin Gonzalez and Jose Cornejo from Argentina, had a true innovation at their disposal. The use of instant adhesives can deliver real benefits in repair, maintenance and industrial production. They are able to join most materials securely and in a matter of seconds. In many cases, this translates into considerable savings, because the use of expensive spare parts can be avoided.

However, the scope of instant-adhesive usage has been limited up until now by the fact that most of them are not able to fill gaps. Conventional instant adhesives can mainly be used for close-fitting parts. With their latest brainchild, Loctite® 3090, the Loctite® developers have

Easy application, controlled curingThe innovative 2-component technology works like this: the activator maximises control over the cure speed and triggers product curing in a defined time frame, regardless of temperature and moisture. The product can be used on a variety of substrates, including plastic, metal, rubber, wood, stone, leather or fabric, and is capable of withstanding a force of some 20 N/mm2.

Application is easy, as the adhesive comes in a dual syringe with seven mixer nozzles. These mixer nozzles ensure a clean application and mean that the correct ratio of each component is always applied. Furthermore, its gel viscosity means the adhesive can be used for vertical or overhead application. After applying the product, it has an on part life of between 1.5 and 3 minutes. Afterwards, the adhesive has cured and you are ready to go.

It is these outstanding features that Rodolfo Bolletero could profit from in the Chilean Andes. With a little help from the Loctite® engineers, he reached the 31st place in this year’s Dakar event. That made him Argentina’s most successful motocross pilot in the competition: mission accomplished, “Loctite® Charlies”, job done.

… the three Loctite® Charlies, solving almost any technical problem …

… at the Loctite® service truck – the first place to visit in case of damage.

Always busy supporting the drivers …

Reliability at work

Loctite® 3090

• Fills gaps of up to five mm

• Gel based / non-drip formula

• Allows vertical and overhead application

• Innovative 2-component technology

• Excellent bonding characteristics on a broad variety of substrates

• Convenient syringe packaging

been able to go beyond this limitation. Loctite® 3090 is a 2- component adhesive that significantly expands the range of applications for instant adhesives.

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| 7Highlight

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|8 Reliability Report 7

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The ovens that dreams are made ofPrince Aga Khan, the Duke of Windsor, Jacques Chirac, Yves Saint-Laurent, Celine Dion, Madonna, Sandra Bullock and Brad Pitt, Jennifer Lopez …

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| 9Reliability Report 7

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La Cornue’s customer list reads like a “Who's Who?”of the rich and famous – and in their kitchens, Loctite® is doing its job, quietly and totally reliably. In Xavier Dupuy’s own words: “Over the years, an extraordinary clientele has frequented La Cornue: perfectionists, great chefs, passionate amateurs, aristocrats, politicians, bankers, famous artists, singers, movie stars.”

La Cornue is not only a favourite of the rich and famous comments in online forums show that the company’s exclusive products fuel the imagination of “normal” people, too: “My wife says when we win the lottery, I get a built-in La Cornue rotisserie,” says “scrapironchef” in the forum “chowhound”. Or very simply, in the words of “ gardenweb” forum member “Coventry Cat 86”: “There is nothing in the world like a La Cornue Chateau.”

Handmade to orderSince 1908 this prestigious family business has produced generation after generation of truly elegant kitchen range cookers that integrate technological innovations with a unique design to guarantee cooking enthusiasts matchless culinary capability. Le Chateau and Cornuchef cookers are still handmade to order, by one craftsman with patience and pride just outside Paris. Or, as forum member “foodnut” puts it: “They do almost every single thing themselves. They are crazy, but they do amazing work.”

The man responsible for ensuring that every single La  Cornue product lives up to the high standards that have made the company a legend is called Alain  Savignat, Production Manager at La Cornue. Alain in charge of all the products La Cornue makes, heading a team of about 20 people.

Explaining the role Loctite® plays in the manufacturing of the various La Cornue ranges, he explains: “Loctite® provides more than just products; they are our partners. They supply us with current products and develop new processes with us for the future.

Every year, over 1,600 gas fittings are secured at La Cornue. The greatest possible flexibility and a totally reliable thread seal are the decisive factors for using Loctite® 577.

The tension-prone enamel surfaces do not allow the screws to be tightened during assembly. This is where Loctite® 243 is applied, which guarantees that the screws and components are securely fastened.

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|10 Reliability Report 7

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“Hello, I’m Xavier Dupuy, Chairman of La Cornue since 1985. La Cornue is a family company that I inherited from my father, who had inherited it from his. Design, performance and reliability are our most important values. Therefore, we use only components with an extremely high durability.”

“Hello, I’m Alain Savignat, Production Manager for La Cornue. I’m in charge of all the products we make, with a team of about 20 people. We use several Loctite® products – in particular, Loctite® 577 for the gas fittings, and Loctite® 243 a general screw-locking device and as a 2K-Epoxy. What we expect from the Loctite® products is absolute reliability, especially for the gas fittings, which are a vital part of the range cooker and for the customer. Loctite® provides more than just products; they are our partners. They supply us with current products and develop new processes with us for the future.”

We use several Loctite® products, in particular Loctite® 577 thread sealant for the gas fittings, and Loctite® 243 as a medium-strength threadlocker and a 2K-Epoxy adhesive. What we expect from the Loctite® products is absolute reliability, especially for the gas fittings, which are a vital part of the range cooker and for the customer.

The perfect cooking environmentIt was Albert Dupuy, the passionate creator and gourmet, and grandfather of Xavier, who invented and patented the natural circulation of hot air in a “vaulted” oven.

Foods cooked in the oven need to be encased in a sealed environment for even cooking. Even a detail such as the glass viewing window can lead to uneven cooking temperatures. This oven is completely sealed for the perfect cooking environment. In 2010 the La Cornue vaulted oven is still unique and synonymous with style, technique and quality of working – definitions that the La Cornue brand proudly embodies.

One hundred years after his ancestor, Xavier Dupuy believes: “A legend has to be built every day.” Every year, La Cornue seals around four hundred metres of pipes and sixteen hundred connections. For assembling and sealing the gas connections, they use Loctite® 577, a liquid medium-strength pipe-thread sealant. Loctite® 577 reliably prevents connections from working themselves loose and stops any leakages caused by vibrations or impact. It also allows fine adjustments to be made during assembly before hardening in anaerobic conditions.

A muse for every cookBy contributing expertise and French inspiration to the culinary art, La Cornue offers three main product ranges: Le Chateau, Cornuchef and Cornufe. For musicians, their musical instrument is an inspiration – just think of a Stradivari violin. The same goes for La Cornue. Every range is a source of inspiration, a muse for every cook.

Xavier DupuyChairmanLa Cornue

Alain SavignatProduction ManagerLa Cornue

Reliability at work

Customer: La Cornue

Task:Sealing of gas fittings.Locking of threaded assemblies.

Products: Loctite® 577Loctite® 243

The fronts of La Cornue cookers, for example, are mostly coated with a glass-enamel finish. When assembling the fittings, the utmost care must be taken because they are highly vulnerable to stress – such as when tightening screws. This is where the medium-strength Loctite® 243 threadlocker comes into play. It securely locks the screws in after hardening without any initial tension. And that’s how Loctite® high-performance products make the lives of people all over the world a little simpler, better and more enjoyable. Bon appétit!

And if you are not convinced, why not follow the advice of “foodnut”: “Do your homework. Visit the La Cornue factory in France. It’s free. It’s near Paris. It’s transparent. Nothing is hidden ...”

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| 11Reliability Report 7

Every era of history has developed its own joining technology. In return, thoughts and actions were influenced by the ability to connect things, in order to create something new. The history of adhesives began more than 120,000 years ago near the city of Jülich, Germany, and is far from over.

The whole is greater than the sum of its parts

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|12 Trend Report

spear tip of the Roman Pilum was attached by three iron nails. And even the sandal of a Roman soldier had dozens of nails in the sole. The nail became a symbol of the power of the Roman Empire, a symbol of the decisiveness of its rulers to create a whole from many different parts.

A nail with two heads – the rivet After the collapse of the Roman Empire, the development of joining technology stagnated for several centuries until, in the effort to prevent nails from loosening, the rivet was invented. The earliest riveting on record dates back to ship construction in the 11th century, whereby the nails were bent over and hammered flat.

Five hundred years later the development of riveting was a necessary response to the emerging industrial production of iron and steel profiles. As a constructive element, the rivet influenced a whole era – not just technically, but also visually  – like no other before. With riveting technology, building on a large scale could finally take off. The construction of gigantic iron and steel structures, railways and shipbuilding blew away any known order of magnitude.

In 1779 the British Iron Bridge was the the first bridge completed to be made entirely from cast iron, whose individual elements were joined together solely by rivets. In 1850 the Britannia Bridge followed, becoming the first railway bridge made exclusively from wrought iron and rivets.

As time went on, the buildings became taller and more daring: in 1889 the Eiffel Tower in Paris was opened, a building constructed with 2.5 million rivets. In 1912 the Titanic, built with 3 million rivets, was launched. In 1931 the Empire State Building was completed, with the number of rivets used estimated at 3.5 million.

The era of riveting in architecture came to an end due to the development of reinforced concrete and welding technology. Lighter materials and the need to use cost-saving energy and metals displaced the old technology, and with it came the prospect of a world in which all things could be done by pure mass production.

The Archimedean screwThe Greek mathematician, physicist and inventor Archimedes was far ahead of his time in many things. Some of his ideas were not understood or used until many centuries after his death. The original idea of the Archimedean screw was not to join things, but to pump water. Later, based on this principle, oil and wine presses were developed, followed by wooden screws for mounting.

In contrast to the relatively archaic principle of nailing the screw, this was a highly intelligent design, which allowed assembling, disassembling and reassembling. Metal screws were first produced in the early 15th century, but for nearly 300 years they were too expensive to be used. The industrial production of screws was made possible with the patenting of a threading machine first in 1797 by Briton Henry Maudslay, followed by American David Wilkinson a year later.

For 2.5 million years the early humans used tools made from either sharpened stones or from suitable pieces of wood. Although the tools were increasingly made in a more sophisticated and skilful way, their technology and use did not change much.

The first technological revolutionThe first technological revolution started about 120,000  years ago: people learned to connect wood and stone to more effective weapons and tools by grass and birch pitch – humanity’s first glue. A heavy stone in combination with a lighter shaft increased effectiveness in hunting, in working with wood and stone, and in digging in the soil. However, despite this technical milestone, life remained unchanged for a long time. People were dependent on where their prey was, and so everything they owned had to be transportable, or it would be left behind.

The first climate changeThe situation changed – probably due to climate change – when people began to settle around 13,000 years ago. For the first time in history, buildings were constructed to last for a long time and had to protect their inhabitants from weather, wildlife and possibly strangers.

Structures, first made of wood and later of clay and stone, were built. The stone buildings were supported by clay and their own weight, and wooden buildings were connected by laced splice. In 8500 BC the first city in the world – Jericho – was built. The oldest-known wooden tenon joint is more than 7,000 years old. The knowledge that our ancestors once had about glueing wood and bricks using birch tree pitch or resin has been forgotten. It took another 3,000 years for the Sumerians and the Egyptians to use glue made from animal skin for ornate woodwork.

Settled life gave a whole new meaning to being able to combine materials. Whereas lightness and recyclability of the individual parts had previously been of crucial importance, durability and stability now became vital. This was a development that would later reach its well-known peak in the architecture of ancient Egypt.

The nail – the second technological revolution The oldest wooden nail ever found came from a well in Saxony, Germany, and was accurately dated on the basis of the tree rings to the year 5101 BC.

The first metal nails with heads were made in Mesopotamia in 2600 BC. They were used more frequently for jewellery, ornaments and property marking than for practical purposes, not least because metal was very rare and too expensive to be used in construction. Not all cultures knew of or used nails. The Egyptians’ ships, although built using the planking method, were not secured by nails but by ropes pulled through holes. The Phoenicians, Greeks and Carthaginians mainly used wooden bolts to build their ships.

Nails made of iron were first used in joining techniques in the Roman Empire. Roman galleys, merchant vessels and naval ships were made with several thousand nails, and were therefore able to withstand extreme pressure. The

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| 13Trend Report

‘Only variety can destroy variety’ – this quotation from the cyberneticist W. Ross Ashby is more relevant than any other to the future of those technologies that have to be developed in order to be ready for the challenges of tomorrow. Maybe it’s one of history’s little ironies that we will have to return to the principles and methods that are 120,000 years old and a milestone of human evolution.

Dr Oskar Villani, SDI Research

The screw was the prototype for the concept of recycling. In 1986 the Hong Kong and Shanghai Bank was built based on plans by renowned London architect Norman Foster. It is not only the most expensive bank building in the world, but its structural components are also connected exclusively with screws. Theoretically, the building could be disassembled into its constituent parts and rebuilt elsewhere.

The third technological revolution – back to basics with adhesives

Nails, rivets, welding and screws make important contributions to the world of modern technology through continuous development. But with a combination of increasing technical demands, the need to reduce weight and the need to join different materials, mechanical joining methods are being pushed to their limits.

The use of new materials such as carbon, and the possibility of combining materials so as to produce new properties, must be complemented by new joining techniques. The sparing use of resources and energy, coupled with a reduction in weight and lightweight design, are the most essential requirements: • In both the aviation and the automotive industries,

lightweight design with maximum safety is the primary economic goal.

• In architecture, new forms and structures are explored.• In the brown-goods industry, the demand for

miniaturisation and design challenge technology.• In the white-goods industry, energy efficiency and noise

reduction are required in addition to faster production.• In mechanical engineering, lower floor and service

times are required as part of increasing demands on performance.

In many cases, it’s no longer just a matter of connecting components but of creating new possibilities and characteristics through these connections. Where mechanical joints such as screws or rivets do not affect material characteristics, and thermal connections such as welding or brazing are only able to connect materials of a similar nature, structural bonding solutions allow the connection of different materials at a molecular level in such a compact way that new properties can be created. Thanks to the almost infinite number of combinations possible of materials and properties, we have opportunities that go far beyond that known today.

Due to the possibility of working on a nanotechnological level, properties of structural bonding can be specifically manipulated in the future:• Compounds that are formed or released under influence

of electrical or magnetic fields.• Compounds that can be either elastic or solid, and that

dampen vibration.• Compounds that heal and repair leaks by themselves.• Compounds that can either insulate or conduct heat.• Compounds that can resist extreme temperatures and

pressures.• Compounds that are just virtually invisible.

The development of nanotechnology adhesives is still in its initial phase. Important aspects such as health indications have not yet been tested.

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|14 Trend Report

2.5 million years ago Tools made from stones and wood

120,000 years ago First adhesive made from grass and birch pitch

13,000 years ago Beginning of settlements

10,500 years ago Jericho, the first city

7,111 years ago Nail made from wood

4,600 years ago First metal nail

4,000 years ago Egypt: adhesive made from animal skin

900 years ago Ship construction with rivets

500 years ago Screw from metal

320 years ago The Netherlands (1690): first adhesive factory

256 years ago England: first letters patent for adhesive

230 years ago Iron bridges built by rivets

140 years ago First synthetic adhesive

60 years ago Invention of instant adhesives

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| 15Trend Report

light- curing adhesives, sealants and coatings for industrial applications including glass assemblies, plastic bonding and medical device manufacturing. Originally, light- curing adhesives were formulated to be cured with ultraviolet-light sources (UV sources), followed by UV-/visible-light-curing systems. The latest generation of light-curing adhesives offered by Henkel relies solely upon the visible-light spectrum to deliver safe, efficient, immediate curing for a broad range of assembly applications.

All Henkel products are tested using the same techniques as those employed in the licensing of medical components. They are certified in accordance with the generally accepted global ISO test standard 10993. And they are subject to a continuous process of further development, ensuring that they correspond to the constantly changing technical and process-related requirements encountered in medical engineering.

Light-curing adhesives that set within secondsThe light-curing adhesives from Loctite® make a visible difference: they are ideal for the bonding of clear and transparent materials where an integral appearance is desired. These bonding agents are made to set within seconds without the need for any additional heat input by simply irradiating them with UV or visible light. The adhesives have fluorescent properties. Not only do they enable rapid manufacturing speeds, they also allow a 100 % in-line surveillance system to be maintained while maximising productivity.

The technology offers further advantages in the form of easy in-process handling: until the adhesives are exposed to the light source, they remain permanently fluid so that the components to be bonded can be precisely aligned prior to curing. As single-component systems, such solutions

Adhesives have become as vital to medical engineering as to virtually every other branch of industry. The use of this relatively young joining technology is likely to increase in the future. Under the Loctite® brand, Henkel offers a wide range of adhesives specifically developed for the production of medical equipment. In particular, adhesives that cure quickly on exposure to light have swept across the industrial spectrum, gaining widespread acceptance because they significantly reduce process costs and have a wide range of properties.

Applications in which clamping, bolting, screw fixing or welding were previously the norm have today extensively switched to adhesive bonding. In fact, most conventional joining techniques can now be replaced by this modern technology. This also applies to the medical engineering field. In direct comparison, the use of adhesives is not only more economical, it also enables the production of stronger and more homogeneous connections between materials. As well as improved product appearance, it offers a higher degree of flexibility in terms of the selection of component materials. This applies especially to the manufacture of medical items such as syringes, catheters, blood filters or cannulas.

Delivering benefits to patientsThe use of adhesives renders real benefits to the patient, as Hermann Handwerker, Head of Applied Adhesive Technology Europe, explains: “Many people still have painful memories of the times when doctors used large glass syringes with a metal cannula. Through the use of adhesive technology, we have been able to reduce the diameter of the cannula to a size that is a lot more patient-friendly.” Ever since the commercialisation of ultraviolet-light-curing products over three decades ago, Henkel has remained at the forefront of the development of

Light-cure adhesives for medical engineering

“Many people

still have painful

memories of the

times when doctors

used large glass

syringes with a metal

cannula. Through

the use of adhesive

technology, we have

been able to reduce

the diameter of the

cannula to a size

that is a lot more

patient-friendly.”

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|16 RD&E Insights

also eliminate the need for time-consuming and costly mixing. And last but not least, these solvent-free adhesives from Loctite® also meet the highest demands in terms of environmental compatibility and occupational safety.

“Being able to bring the total solution to the customer is essential,” says Robert Whitehouse, Focus Account Manager Medical in the UK. “At Henkel, we have the adhesive technologies, the application, dispensing and curing systems plus the experience and the expertise to provide a full-service solution.”

Solving problems for customersThe case study of Loctite®’s successful cooperation with MPC (Medical Packaging Corporation) in the United States illustrates what Whitehouse means:

For years, the medical testing industry had been using a swab device with glass ampoules containing reagents. After a sample had been collected, the medical technician broke the glass ampoule to release the reagent. There were many problems with this technology, including the possibility of glass shards that could cut the technician, clogging the dropper tube, or getting into the reagent and affecting the variability in the volume dispensed.

Addressing these safety issues became increasingly important with the AIDS problem. Medical Packaging Corporation saw the need to produce a swab package that would make collection and transportation easier and safer. Thus, they invented the Snap SwabTM, a Dacron swab tip on a polystyrene shaft encased in a polyethylene tube. The shaft releases the reagent, and the swab is ready for use. With no glass to puncture the skin or prevent the reagent from flowing, it’s simple and easy to use. But the engineers at MPC knew that to keep the cost down and ensure dependability, the swab had to be reliably bonded to the inside of the tube. In addition, the interface of the swab shaft and the protective tubing and the reagent bulb had to be made leak-proof. The tolerance of the two parts (swab extrusion and blow-moulded tube) were incompatible.

That’s when they called Loctite® for help. The answer: an easily applied adhesive that bonds both surfaces. Loctite® Light Cure 3311 is a one-component, low- viscosity adhesive. It cures rapidly to form flexible, transparent bonds when exposed to ultraviolet radiation and/or visible-light sources. MPC now automatically dispenses Loctite® 3311 directly on the assembly line using equipment they already owned.

Inexpensive and reliableSince patenting the Snap SwabTM, Medical Packaging Corporation has signed contracts with companies in various markets including food, medical, industrial, drug delivery and cosmetics. The opportunities for application seem endless, including burn/wound care containing antibiotics, home self-testing kits, mixing of solutions at point of use, and single-use cosmetic samples.

Loctite® Light-Curing Acrylic  3311 enabled MPC to produce a product that was safe, convenient, reliable, and inexpensive. Frederic Nason, president of Medical Packaging Corporation said, “Two to three cents for

Loctite® 3311 is pretty darn cheap. But even though an item is inexpensive, people still want it to work every time. The Loctite® product made our Snap SwabTM reliable. All of this would not have been possible without it.”

LED curing and dispense equipment: single-source equipment supply

There are four major factors that have to be taken into account in the industrial application of light-curing adhesives: the emissions spectrum of the curing system, the light intensity required, the transmittance of the material being bonded and the requisite curing properties. The selection of the right equipment and coordination of these tools with the relevant adhesive are decisive for the quality of the join.

Henkel’s portfolio includes not only the adhesives technology but also the necessary hardware for metering, curing and monitoring. Modular equipment technology from Loctite® guarantees bubble-free flow metering in accordance with the high standards of reliability applicable to medical products. Various light-curing systems are also available for both blanket and focused light irradiation, depending on the application. As a system supplier, Loctite® is able to ensure the ideal interplay between all the major components influencing the outcome, for maximum joint quality every time.

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| 17RD&E Insights

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|18 Reliability Report 8

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A high-precision niche

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| 19Reliability Report 8

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What is a cartesian shuttle? A micromanipulator? How about a polar carbon fibre manipulator? If a simple “I don’t know” is your answer to all of the above, then you probably haven’t heard of AMG SA of France, either. AMG is one of those medium-sized companies operating successfully on the global market, while also keeping a relatively low profile. Working in a very specialised niche market, AMG have been able to establish subsidiaries in key locations in Europe and on the American continent.

Producing devices like the micromanipulator requires extremely high-precision manufacturing. Why the production process is so demanding and sophisticated becomes clear when taking a look at what a micromanipulator actually does as a device that is used to physically interact with a sample under a microscope. Here, a level of accuracy of movement is necessary that cannot be achieved by the unaided human hand.

High-level meetingAMG products are also used in space, such as the polar manipulators, another type of robot. Working at this level means that AMG has to draw on the most reliable material and equipment suppliers. This is where Loctite® and AMG meet.

While designing a robot for the automotive industry, AMG encountered a problem trying to join aluminium with cast aluminium. The forces that the robot has to withstand when in use can reach up to six G. Initially, AMG tried using conventional, i.e. mechanical, fastening technology. However, this approach – i.e. the welding – didn’t work. The bond was not strong enough to guarantee the functioning of the device. AMG turned to Loctite®, and the Loctite® engineers found a solution: Loctite® 9466 2K Epoxy. The use of adhesive technology enabled the robotic arm to pass all the tests – the joint proved to be strong enough.

Unmatched resistanceEpoxy adhesives form part of the class of adhesives known as structural adhesives or engineering adhesives. Epoxy adhesives can be developed to suit almost any

application. Epoxies are virtually unmatched in heat and chemical resistance among common adhesives. Loctite® offers a wide range of epoxy adhesives

and is able to develop tailor-made epoxies for specific tasks.

In the case of AMG, this wasn’t necessary as the solution was found in the existing product range. However, considering the way that AMG’s business is developing and the kind of challenges they face, this might very well change in the future.

One reason why the French supplier of robotics and microelectronics is able to respond so effectively, is because it has specialised in certain niches.

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|20 |20 Reliability Report 8

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Thorough cleaning of the parts is essential before bonding. Loctite® 7063 is therefore the ideal accessory.

Loctite® 9466 2K Epoxy ensures the reliable bonding of aluminium and cast aluminium – withstanding forces up to six G.

Manufacturing of the high-precision parts starts on a fully digital basis using state-of-the-art CNC lathes.

“Founded in 1979, AMG is a family company that originally specialised in mechanical milling. Building on its manufacturing potential and process expertise, over a decade ago the company began to expand into other fields such as specialist machinery and modular gripping systems.

We have quickly become one of the European leaders in handling solutions for automotive stamping lines and, like Henkel, we must always be there for our clients. Thanks to a combination of innovation and the latest technology, we are therefore able to meet the technical and financial requirements of major customers and automobile manufacturers such as Renault or PSA.

As a long-term user of Loctite® adhesive and threadlocking products in our specialised machinery, we naturally sought advice from Henkel when we needed to ensure that our grippers were being reliably assembled. These components are at the centre of our press lines and are subject to highly repetitive movements. The speed of production leads to ever faster acceleration and deceleration, and so we wanted to be able to optimise our manufacturing processes. With this in mind, together we developed a structural adhesive solution that uses Loctite® 9466 instead of welding, making the whole construction more flexible and durable. This innovative adhesive solution has already won over our regular clients, as well as allowing us to break into new markets, particularly in Africa and South America.”

Guy Corvée, R&D and Gripper Department Sales Manager

Reliability at work

Customer: AMG

Task:Structural bonding of high-precision parts made of aluminium and cast aluminium

Products: Loctite® 9466 2K Epoxy

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| 21| 21Reliability Report 8

Fundamental structureWherever you look, adhesives are replacing traditional fastening methods such as riveting or welding in any kind of goods. That applies especially to the so-called structural adhesives that strongly enhance the durability and reliability of products. Discover the new possibilities structural bonding has to offer – for engineering, industrial design and construction at www.360bonding.com/uk

Order the next issue of our at work magazine at www.loctitesolutions.com/uk

Find your perfect solution within seconds. Just choose your applied materials and the required characteristics of the bonding.

Get access to a knowledge base that presents all five structural bonding technologies in detail.

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|22 Handy Hints

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| 23Outlook

® designates a trademark of Henkel AG & Co. KGaA or its affiliates, registered in Germany and elsewhere © Henkel AG & Co. KGaA, 2010

Imprint

PublisherHenkel AG & Co. KGaAAdhesive TechnologiesHenkelstraße 6740191 DüsseldorfGermanywww.henkel.com Editorial DepartmentMarketing Communications: Christian Scholze Caroline Sach Jutta HaagAndreas Engl ContactJutta Haag (Project lead) Phone: +49-211-797-7304Jutta.Haag@henkel.com Creationblösch.partner Werbeagentur GmbHwww.bloesch-partner.de

Henkel LimitedWood Lane End Hemel Hempstead Hertfordshire HP2 4RQ Tel. 01442 278000 Fax 01442 278071www.loctite.co.ukwww.loctitesolutions.com/uk