Extreme weather and temperature resistant silicone

Extreme weather and temperature resistant silicone 336  is a high performance, single component silastomer, ready to use adhesive sealant.  It has a paste-like consistency, which cures to a tough, resilient and durable silicone rubber when exposed to moisture in the air.  Since it will not flow of its own weight, silastomer 336 can be applied to vertical, horizontal and overhead joints without sagging or running off.  It will adhere to clean metals, glass, most types of wood, silicone resin, vulcanized silicone rubber, natural and synthetic fibre, ceramic, many plastics and painted surfaces.  Silastomer 336 provides excellent resistance to moisture, weathering, vibration, ozone and extreme temperatures.  It can be applied in surface temperatures of 32°C (0°F) to above 49°C (120°F) with no loss in performance. Fully cured Silastomer 336 can withstand extended periods at temperatures up to 204°C (400°F.) Extreme weather and temperature resistant silicone silastomer 336 will maintain its seal integrity for 25 years, is oil resistant and you can even dispense upside down and it won’t drip.

Extreme weather and temperature resistant silicone

product benefits

Silastomer 336

• One component – no mixing

• Room temperature cure

• Non-sagging for use on horizontal, vertical or overhead surfaces

• Excellent high and low temperature resistance

• Excellent weatherability

• Versatile electrical insulation

• Cured rubber is non-toxic

• Good solvent resistance


When fully cured, Extreme weather and temperature resistant silicone silastomer 336 meets requirements for Mil Spec MIL-A-46106B Type I. Also FDA compliant with Regulation Title 21 CFR 175.105 where incidental food contact may be involved.

Industries served

Aerospace, aviation, automotive, electrical, electronics, appliance, defence, ammunition, marine, engineered plastics, heavy equipment, maintenance, energy and utilities, industrial assemblies, medical device assemblies, composites

For more information contact us

Central Tapes & Adhesives Ltd are the UK & European technical specialists and distributors for Hernon Manufacturing Inc.