A primer composition for silicone rubbers, in particular for
addition-crosslinking silicone rubbers, comprises a tetraalkoxysilane
and/or partial hydrolysate thereof, a metal salt, alkoxide, or chelate
and/or partial hydrolysate thereof, a silicone resin, and from 50-95% by
weight of solvent. The primer provides excellent adhesion between
silicone rubber and numerous substrates.