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K-TEK-K-200-S 3B

 
K-FLEX CELLULAR SILICONE ELASTOMER

Property

Units

K200-S K250-S K350-S K400-S K450-S K530-S Test method

*Density

kg.m-3
lb.ft-3

195
12.2

256
16.0
320
20.0 
400
25.0 
460
28.7 
 550
34.3

BSENISO 845
ASTM D3574

**Hardness

Shore OO
Shore A

 35 ±5
<5
42 ±5 
5
55 ±5
15 
65 ±5
17 
70 ±5
24 
80 ±5
30 
ASTM D2240 

Compression Stress
40% strain 
Compression Stress
25% strain

kPa
psi

50
4.6

90
6.4 
120
8.3 
165
9.0 
230
17.4 
470
34.8 

BSENISO 3386 part1, 2
ASTM D1056

Tensile Strength

MPa
psi

0.6
87

0.6
87 
0.75
108 
0.75
108 
1.5
217 
2.0
290 

BSENISO 1798
ASTM D412 

Elongation to Failure % 140 145  120  120  130  130 

BSENISO 1798
ASTM D412

Compression Set
50% compression - 
24 hours recovery
22 hours @ 70°C (158°F)
15.0 12.0  12.0  10.0  10.0  9.5 

BSENISO 1856

22 hours @ 100°C (212°F)

18.0

14.5  14.0  12.0  12.5  12.0  ASTM D1056
Water Absorption <5% <5 <5

<5

<5

<5 ASTM D1056

* Density measured on 25 mm diameter cord sample. The density of samples of different sizes will be different from that stated here.
** Hardness measured on 10 mm thick samples. At less than 10mm the measured hardness will increase with density. The Shore A values are provided as a guideline for comparison to solid materials and as such are not designed for use in specifications. The compressive stress on samples of different dimensions, especially thickness may vary from that quoted here. For further information about physical properties for other sample sizes, please contact the technical department. 

K-FLEX reserves the right to change data and technical requirements without notice.



K-FLEX CELLULAR SILICONE ELASTOMER - FLAME RESISTANT
Property

Units

K150-SV0 K200-SV0 K300-SV0 K400-SV0 K450-SV0 K600-SV0 Test method
*Density

kg.m-3 
lb.ft-3

150
10.0

220
13.7 
300
19.4 
390
24.3 
450
28.1 
600
37.5 

BSENISO 845 
ASTM D3574

Compression Stress
25% strain

kPa 
psi

19
2.7
24
3.5 
37
5.4 
52
7.5 
73
10.6 
112
16.2 
ASTM D2240 

Compression Stress
40% strain

kPa 
psi

40
5.8

50
7.3 
80
13.1 
120
17.4 
160
23.2 
250
36.3 

BSENISO 3386 part1, 2 
ASTM D1056

Tensile Strength

kPa 
psi

170
24.7
280
40.6
304
44.1 
445
64.3 
675
97.8 
830
120.4 

BSENISO 1798 
ASTM D412 

Elongation to Failure % 110 130 90 100 90 90

BSENISO 1798 
ASTM D412

Compression Set
50% compression
24 hours recovery.
22 hours @ 70°C (158°F)

<1 <1 <1  <1 <1 <1

BSENISO 1856

22 hours @ 100°C (212°F)

1

2 3 3 3 2 ASTM D1056

* Density measured on 25 mm diameter cord sample. The density of samples of different sizes will be different from that stated here.
** Hardness measured on 10 mm thick samples. At less than 10mm the measured hardness will increase with density. The Shore A values are provided as a guideline for comparison to solid materials and as such are not designed for use in specifications.
*** Compression Stress measured on samples as defined in BSENISO 3386. The compressive stress on samples of different dimensions, especially thickness may vary from that quoted here. For further information about physical properties for other sample sizes, please contact the technical department.

K-FLEX reserves the right to change data and technical requirements without notice.

K-TEK Silicone Foam Technical Data Sheet

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