High Strength Grades: HS40 – 70
High strength silicone rubber applications
Our high strength grades of Silicone Rubber have excellent tear strength properties, making them suitable for complex extruded profiles and mouldings. They are suitable for a wide range of uses including tubing and seals for the pharmaceutical, and food and drink industries (F.D.A and W.R.C approved*), silicone rubber components within aerospace and rail and other mass transit applications, and can be supplied pigmented or transparent.
Their physical properties include:
- Temperature range -65°C to 200°C
- Heat stabilised parts can withstand short term exposure between 250° C – 300°C
| Process | Extrusion | Extrusion | Extrusion | Extrusion | ||
|
Grades |
HS 40 | HS50 | HS60 | HS70 | ||
| Specific Gravity | DIN 53 479A | g/cm3 ± 0.02 |
1.12 |
1.15 |
1.17 |
1.20 |
| Hardness | DIN 53 505 | Shore A ± 5 |
40 |
50 |
60 |
70 |
| Tensile Strength | DIN53504-S1 | N/mm2 |
9.0 |
10.0 |
10.0 |
9.0 |
| Elongation | DIN53504-S1 | % |
630 |
600 |
580 |
650 |
| Tear Resistance | ASTM D 624 B | N/mm |
34 |
38 |
42 |
48 |
| Impact Resistance | DIN 53 512 | % |
32 |
25 |
25 |
25 |
| Compression Set | DIN 53517
22 h/175o C |
% |
34 |
31 |
34 |
59 |
* 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