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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

1.13

1.14

1.14

1.16

Hardness

DIN 53 505

Shore A ± 5

35

45

55

65

Tensile Strength

DIN53504-S1

N/mm2

9.0

9.5

10

9.5

Elongation

DIN53504-S1

%

750

600

550

450

Tear Resistance

ASTM D 624 B

N/mm

30

33

33

33

Impact Resistance

DIN 53 512

%

32

25

25

25

Compression Set

DIN 53517

22 h/175o C

%

35

35

40

45

* 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