Epoxy Resin Specification Information

Epoxy Resin products are generally specified in sections 11600 and 12345 of most equipment specifications.

Architectural Specification

EPOXY RESIN WORK SURFACES shall be 3/4" (19mm) or 1" (25mm) thick. Work surfaces shall be monolithic and molded from a modified epoxy resin. Work surfaces shall have a smooth non-glare finish. Work surfaces shall be installed with a uniform 1" (25mm) overhang on the front and exposed ends. Work surfaces shall have a continuous drip groove 1/8" (3mm) wide and 1/8" (3mm) on the underside of all exposed edges. All exposed edges shall be finished with a 1/8" (3mm) bevel or a 3/16" (4.7mm) radius. Work surfaces shall be provided in longest practical lengths to minimize joints.

BACKSPLASHES shall be of the same material, thickness, and finish as the work surface. Backsplashes are to be supplied loose for field application to assure proper fit of walls.

SINKS shall be selected from standard sizes. All rectangular sinks shall be molded in one piece with corners coved and bottom sloped to the outlet. All rectangular sinks shall include modified resin SO-3R 1-1/2" (38mm) outlet, OE-R overflow, and SS-2R stopper. Sinks, outlets and stoppers are to be supplied loose for field application.

FUME HOOD TOPS shall be selected from standard sizes. Fume hood tops shall be dished a minimum of 1/4" (6mm) to contain spills unless otherwise specified on architectural drawings.

COLOR of work surfaces, sinks, accessories and fume hood tops shall be grey, white or black.

Call for a design manual for work surface configurations, thickness, edge finish and sink sizes.

Technical Data -- Epoxy Resin Products

PHYSICAL PROPERTIES: The following data describes the typical physical properties of epoxy resin products.

IMPERIAL S.I.

a) Compressive Strength (ASTM D695) 36,500 psi 252 MPa

b) Flexural Strength (ASTM D790) 16,000 psi 110 MPa

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c) Tensile Strength (ASTM D638) 10,500 psi 72 MPa

d) Density (ASTM D792) 123.55 lbs/ft3 1.96g/cm3

e) Rockwell M Hardness (ASTM D785) 110 110

f) Heat Distortion (Temp at 264 psi)

(ASTM D648) 350 F 176 C

g) Thermal Coefficient of Expansion

(ASTM D696)

1.509 x 10-5 in./°F

5.2619 x 10-4 m/°C

h) Fire Resistance (ASTM D635) Self-Extinguishing Self-Extinguishing

i) Water Absorption (ASTM D570) 0.0076% .0076%

HEAT RESISTANCE:

a) A high form porcelain crucible (size: 15 ml. capacity) was heated over a Bunsen burner until the crucible bottom attained a dull, red heat. Immediately the hot crucible was transferred to the epoxy resin work surface and allowed to cool to room temperature. Upon removal of the cooled crucible, there was no effect on the epoxy resin work surface; no blisters, cracks, nor any breakdown of the work surface whatsoever.

b) The epoxy resin work surface showed no blistering or cracking when exposed to direct flame. An overturned 3/8" (9.525mm) Bunsen burner, adjusted to quiet flame with a 1-1/2" (38mm) inner cone, was allowed to remain on the work surface for a period of five (5) minutes with no effect.

Technical Data -- Epoxy Resin-R Products

PHYSICAL PROPERTIES: The following data describes the typical physical properties of epoxy resin-R products. These products are limited to CS-4R, SO-3R, OE-4R, OE-6R, OE-8R, OE-10R, and OE-S.

IMPERIAL S.I. a) Flexural Strength (ASTM D790) 7,200 psi 29.3 MPa b) Tensile Strength (ASTM D638) 4,250 psi 49.6 MPa c) Specific Gravity (ASTM D792) 1.15-1.30 1.15-1.30 d) Hardness D Scale 70 70

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Epoxy Resin Test Results

Chemical resistance test methods

Method A – for volatile chemicals. A cotton ball saturated with the test chemical is placed in a one-ounce bottle {10 x 75 mm} test tube or similar container} with a reservoir of liquid above the ball. The container is inverted on the test material surface for a period of 24 hours. Temperature of test 23 +/-2 °C (73 + /-4 °F) this method was used for the organic solvents.

Method B – for non-volatile chemicals, five drops (1/4cc) of the test chemical are placed on the test material surface. The chemical is covered with a watch glass (25mm) for a period of 24 hours. Temperature of test 23 +/-2 °C (73 + /-4 °F). This method was used for all chemicals listed above other than the solvents.

Evaluation – After 24 hour’s exposure, exposed areas are washed with water, then a detergent solution, finally with naphtha, then rinsed with distilled water and dried with a cloth. The sample is then numerically rated as follows:

1. No Effect - No detectable change in color or gloss but no clearly discernable change in function or life of the surface.

2. Excellent - Slight detectable change in color or gloss but no change in function or life of the surface.

3. Good - A clearly discernable change in color or gloss but no significant impairment of surface life or function.

4. Fair - Objectionable change in appearance due to deterioration or etch, possibly resulting in deterioration of function over an extended period of time.

5. Failure - Pitting, cratering or erosion of the surface, obvious and significant deterioration.

Inorganic Acids – Corrosive Black Platinum Pearl Beige Chromic Acid - 40% 3 4 4 4 Hydrochloric Acid - 10% 1 1 1 1 Hydrochloric Acid - Conc - 37% 1 1 1 1 Nitric Acid - 40% 1 1 1 1 Nitric Acid - Conc - 70% 1 2 2 2 Sulfuric Acid - 60 % 2 1 2 2 Sulfuric Acid - Conc - 96% 5 5 5 5

Organic Acids - Corrosive Acetic Acid - 5% 1 1 1 1 Acetic Acid - Glacial 1 1 1 1

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Citric Acid - 1% 1 1 1 1 Oleic Acid 1 1 1 1 Phenol Solution - 5% 2 1 2 2

Alkaline Solutions - Corrosive Ammonium Hydroxide - 10% 1 1 1 1 Sodium Carbonate Sol - 20% 1 1 1 1 Sodium Hydroxide Sol - 60% 1 1 1 1 Sodium Hypochlorite Sol - 4% 1 1 1 1

Organic Solvents Acetone 2 1 1 2 Benzene 2 1 1 1 Carbon Tetrachloride 1 1 1 1 Diethyl Ether 2 1 1 1 Dimethyl Formamide 1 1 1 1 Ethyl Acetate 2 2 2 2 Ethyl Alcohol - 95% 1 1 1 1 Ethylene Dichloride 2 2 2 2 Heptane 1 1 1 1 Isooctane 1 1 1 1 Kerosene 1 1 1 1 Methyl Alcohol 1 1 1 1 Toluene 1 1 1 1

Organic Compounds Aniline 1 2 2 2 Mineral Oil 1 1 1 1 Olive Oil 1 1 1 1 Soap Solution 1 1 1 1 Transformer Oil 1 1 1 1 Turpentine 1 1 1 1

Physical Properties Test Results

Physical Test Imperial Metric Compressive Strength ASTM D695 31,400 psi 216.55 N/mm2 Tensile Strength ASTM D638 8,000 psi 55.2 N/mm2 Flexural Strength ASTM D790 11,700 psi 80.7 N/mm2 Rockwell Hardness “M” ASTM D785 122 122 Specific Density ASTM D792 122.4 lb/ft3 1.96 gm/cm3 Water Absorption ASTM D570 0.01% 0.01% Fire Resistance ASTM D635 ATB (sec)=0 AEB (mm)=0 Heat Deflection @ 264 psi ASTM D648 342 °F 172 °C

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Heat resistance Test Results

Test A – A porcelain crucible was heated to a dull red color, placed on the test material, and allowed to cool to ambient temperature

Observation – No surface deformation was observed

Test B – A 3/8” bunsen burner was adjusted to a quiet flame with a 1 1/2” inner core and overturned on the test material where it stayed for 5 minutes

Observation – No surface deformation was observed

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