RS-870 Soft Cellular Silicone Sponge Pads

Only %1 left

Technical Datasheets

Adhesive Datasheets
SA1911 2378SL 654M

RS-870 is a soft silicone sponge that retains the lightness of a foam while exhibiting enhanced sealing capabilities of a traditional sponge rubber. RS-870 is an alternative to HT-870.

Don’t see what you are looking for?
Our engineering team is ready to assist.

Contact Us

Typical Applications:
• Environmental seals to protect against penetration of dust, moisture, air, or light within outdoor enclosures such as lightning features, HVAC units, and electronic cabinets
• Shock absorbing cushions and gaskets within automobiles and appliances

Product Features & Benefits:
• Temperature independency
• UV/Ozone resistant
• Good compression set resistance

More Information
Density 16 lb/ft3
Test Methods ASTM D1056, ASTM D746
Water Absorption Range 0.01
Minimum Temperature Range -67°F
Maximum Temperature Range 392°F
Compression Force Deflection 5 psi
Material / Substrate Silicone Sponge
Water Absorption (Range) 0-4.99%
Density (Range) 10-19.99 lb/ft3
Environmental and Chemical Properties Ozone Resistance, UV Resistance
Minimum Temperature (Range) ≤ -50°F


HVAC, Industrial & Electromechanical
Engineering Assistance

H-O Products offers a broad range of engineering services ranging from material evaluation and specification to product/component design recommendations.


Our standard and custom engineered pads, tapes and gaskets are manufactured to improve performance and efficiency, helping our customers optimize costs and increase productivity.

Learn More

Resource Library

From foam and rubber to polymeric and composite knowledge, you can count on our expertise to provide you with a complete product system, along with the technical support and advice you need to succeed.

Learn More