General Purpose Grades: GP40 – 80
General purpose silicone rubber applications
The general purpose silicone rubber grades are suitable for complex extruded profiles and mouldings. They are suitable for a wide range of uses including tubing and seals for the food and pharmaceutical industries (F.D.A and W.R.C approved*), and silicone rubber parts in vehicles.
Their physical properties include:
- Temperature range -65°C to 200°C
- Heat stabilised parts can withstand short term exposure between 250° C – 300°C
These Rubbers can be supplied pigmented or transparent.
| Process |
Extrusion |
Extrusion |
Extrusion |
Extrusion |
Extrusion |
||
| Grades |
GP40 |
GP50 |
GP60 |
GP70 |
GP80 |
||
| Specific Gravity | DIN 53 479A | g/cm3 ± 0.02 |
1.12 |
1.15 |
1.14 |
1.16 |
1.19 |
| Hardness | DIN 53 505 | Shore A ± 5 |
40 |
50 |
60 |
70 |
80 |
| Tensile Strength | DIN53504-S1 | N/mm2 |
9.3 |
10.4 |
10.4 |
10.7 |
9.6 |
| Elongation | DIN53504-S1 | % |
570 |
500 |
470 |
440 |
350 |
| Tear Resistance | ASTM D 624 B | N/mm |
16 |
21 |
21 |
22 |
21 |
| Impact Resistance | DIN 53 512 | % |
57 |
54 |
58 |
56 |
54 |
| Compression Set | DIN 5351722 h/175o C | % |
35 |
35 |
35 |
35 |
40 |
* FDA § 177.2600 & BGA XV Silicones regulations.
Figures given above are for guidance only and should not be used in preparing specifications.
E.&O.E