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0.1 10 100 100000
100
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0
% L
oad
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aine
d
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Elapsed Time (Hours)
650°F
700°F
750°F
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850°F
900°F
950°F
1000°F
CRITICAL SERVICE SERIES
Thermiculite® 815Tanged Sheet
CRITICAL SERVICE SERIESThermiculite® 815 Tanged Sheet,
hightemperature sheet material reinforcedwith a 0.004 in. thick 316
SS tanged core.
Thermiculite®INNOVATIVE. VERSATILE. COMPLETE.
Technical Information
Graph 1 illustrates the loss of load over time for graphite as
afunction of temperature.
Graph 1 - Flexible graphite relaxation as a function of time and
temperature (data generated by TTRL)
1
ProductReference Thermiculite 815 Tanged Sheet
ServiceMaximum Service Temperature 1800°F (982°C)Maximum Tested
Pressure 2900 psi (200 bar)
TypicalPhysical
Properties
Thickness in. 1/32 1/16 1/8Facing Density lb/ft 3 75 75 75ASTM
F36 Compressibility % 33 44 44ASTM F36 Recovery % 13 9 9BS 7531 Gas
Permeability mL/min 0.06 0.13 0.17BS 7531 Stress Retention @ 570°F
psi 4930 4500 2470ASTM F38B Creep Relaxation 1/32" 23.5%
AvailabilityThickness Range 1/32", 1/16", 1/8"Sheet Size 1 m x 1
m, 60" x 60" (special)
• Thermiculite 815 Tanged Sheet can be laser and waterjet cut.•
Seal large diameter gaskets at the dovetails with
Thermiculite paste.
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Technical Information
CRITICAL SERVICE SERIES
Thermiculite® 815Tanged Sheet
As seen in Graph 2 below, Thermiculite is thermally stable at
hightemperatures.
Unlike graphite, the load loss at operational temperatures does
not increase with time when using Thermiculite, as shown in Graph
3.
Graph 2 - Cumulative iso-thermal weight loss results for the
best and worst exfoliated graphites and Thermiculite 815 sheet as a
function of temperature.
Graph 3 - Thermiculite relaxation vs.temperature in comparison
with data from Graph 1.
CRITICAL SERVICE SERIESThermiculite® 815 Tanged Sheet,
hightemperature sheet material reinforcedwith a 0.004 in. thick 316
SS tanged core.
Thermiculite®INNOVATIVE. VERSATILE. COMPLETE.
482 572 662 752 842 932 1022 1112 1202 1292 1382 1472 1562
1652
0
10
20
30
40
50
60
70
80
90
1003 6 9 12 15 18 21 24 27 30 33 36 39 42 45
Each specimen heldsuccessively for 3 days ateach temperature and
thechange of weight recorded
WORST EXFOLIATEDGRAPHITE TESTED
BEST EXFOLIATEDGRAPHITE TESTED
Temperature °F
Cum
ulat
ive
Wei
ght L
oss
(%)
Time Since Start of Test (days)
392
THERMICULITE 815SHEET MATERIAL
Graphite @ 698°F (370°C)
Graphite @ 950°F (510°C)
Thermiculite @ 698°F (370°C)
Thermiculite @ 950°F (510°C)
10 100 1000 10000
100
90
80
70
60
50
40
30
20
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0
Elapsed Time (Hours)
% L
oad
Ret
entio
n
2
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CRITICAL SERVICE SERIES
Thermiculite® 815Tanged Sheet
CRITICAL SERVICE SERIESThermiculite® 815 Tanged Sheet,
hightemperature sheet material reinforcedwith a 0.004 in. thick 316
SS tanged core.
Thermiculite®INNOVATIVE. VERSATILE. COMPLETE.
Part A
Part B1
Part B2
Part B3
Gb 1,906 psi
a 0.2
Gs 456 psi
TpMIN 18TpMAX 58,645S100 4,788 psiS1000 7,588 psiS3000 9,400
psiS10000 12,026 psi
Note the very high level of tightness.
1 10 100 1000 10000 100000 1000000
100000
100
10000
1000Gas
ket S
tress
, Sg
(psi
)
a = 0.200
Gb = 1,906
FL28RT01
FL28RT03
Gs = 456
Tightness Parameter, Tp
TpMAX = 58,645
3
ROTT TEST DATA Thermiculite 815 Tanged Sheet 4.875 x 5.875 x
0.086 in.
TH815
m 2.0
Y 2,500 psi
Design Properties
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Flexseal Industrial is a full line gasket and o-ring
distributor. We provide a broad range of products including but not
limited to Flexitallic spiral wound gaskets, die cut gaskets,
sheet material, Flexpro (kammprofile) gaskets, RTJ's and o-ring
seals.
We offer superior customer service and are committed to meeting
the needs of all your industrial sealing applications.
CALL 832-445-0000 FAX 832-445-0002
EMAIL [email protected] VISIT
www.flexsealindustrial.com____________________________________________________________________________________
24/7 EMERGENCY CALLOUT SERVICE
http://www.flexsealindustrial.commailto:[email protected]
