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BOSS® Hi-Temp silicone sealant is a one-part, non-slumping paste that cures to a tough, rubbery solid at room temperature on exposure to water vapour in the air, and can be used for numerous sealing and bonding applications.


  • Extremely durable.
  • Fast curing.
  • Flows readily from the container.
  • Formulated to perform at extreme temperatures.


  • Oil pans.
  • Oil pump flanges.
  • Rear-end housings.
  • Thermostat housings.
  • Timing chain covers.
  • Transmission pans.


This product is available in black, grey, and red.


Available in 15 gms, 25 gms, 33 gms, and 85 gms aluminium tubes.

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