AS1803 is a non-corrosive, one part, room temperature vulcanising (RTV) silicone rubber. It is one of a new family of products called acetone cure sealants that are solvent free. It exhibits excellent primerless adhesion to many substrates. The product cures rapidly in contact with atmospheric moisture to a tough rubber. AS1803 does not corrode copper or its alloys and exhibits excellent primerless adhesion when fully cured.


  • Good thermal conductivity
  • Non-corrosive
  • Fast skinning
  • Low linear shrinkage

SPECIFICATIONS (typical properties)

Durometer : 65, Shore A
Elongation : 94%
Color : White
Thermal Conductivity : 1.55 W/m-K
Cure Type : Acetone
Rheology : Self-leveling
Tack Free Time : 4 mins