WACKER offers two types of solid silicone rubber: ELASTOSIL® R (peroxide-curing grades) and ELASTOSIL® R plus (platinum-catalyzed, addition-curing grades). You may choose between base stock and ready-to-use mixtures. Crosslinkers, stabilizers, pigments and other additives round out our product offering.

ELASTOSIL® R solid silicone rubber grades are peroxide-curing. They can be processed by conventional methods, such as extrusion, calendering, compression and transfer molding, or injection molding. They cure in heat and are ideal for manufacturing a variety of silicone rubber articles.

This product can be used within a temperature range of – 55 °C to + 210 °C. The addition of heat stabilizers at service temperatures of more than 180 °C is recommended. Further information to improve the heat stability by use of specific ELASTOSIL® AUX Heat Stabilizers can be obtained from the Technical Information Sheet “ELASTOSIL® AUX Stabilizers H” or from the latest brochures.

Available Formats

Tubing
Sheeting
O-Rings
Profiles
Seals, Washers & Gaskets
Mouldings
Extrusions

Suitable For

Water
Pharmaceutical
Low Temperature
High Temperature
Food & Beverage
Flame Retardant

Downloads

Wacker R401 Overview

Products Technical data Product properties
Appearance Hardness Shore A Tensile strength Elongation at break Tear strength Tear strength Specific Features
ELASTOSIL® R 401/10 OH transparent 13° 6.00 N/mm² 1200 % 24 N/mm 41 % Food-contact,General purpose
ELASTOSIL® R 401/20 OH transparent 23° 9.0 N/mm² 1000 % 27 N/mm 33 % Food-contact,General purpose
ELASTOSIL® R 401/30 OH transparent 34° 10.0 N/mm² 720 % 22 N/mm 20 % Food-contact
ELASTOSIL® R 401/40 S transparent 33° 10 N/mm² 800 % 24 N/mm 15 % Food-contact,General purpose
ELASTOSIL® R 401/40 S transparent 41° 11.0 N/mm² 730 % 28 N/mm 16 % Food-contact,General purpose
ELASTOSIL® R 401/50 S transparent 52° 12.0 N/mm² 640 % 29 N/mm 17 % Food-contact,General purpose
ELASTOSIL® R 401/55 S transparent 55° 11.0 N/mm² 470 % 23 N/mm 35 % Food-contact,General purpose
ELASTOSIL® R 401/60 KX transparent 61° 11.0 N/mm² 460 % 25 N/mm 25 % Food-contact
ELASTOSIL® R 401/60 S transparent 62° 11.0 N/mm² 530 % 26 N/mm 16 % Food-contact,General purpose
ELASTOSIL® R 401/70 S transparent 71° 11.0 N/mm² 530 % 31 N/mm 22 % Food-contact,General purpose
ELASTOSIL® R 401/80 S transparent 81° 10.0 N/mm² 430 % 26 N/mm 41 % Food-contact,General purpose
ELASTOSIL® R 401/90 OH transparent 89° 7.4 N/mm² 160 % 14 N/mm 19 % Food-contact,General purpose

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If you’d like to discuss your idea, requirements or application with a member of our technical team, fill out the form below or contact us.
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