The invention relates to adhesive silicone elastomer compositions which
can be crosslinked by polyaddition. The composition, crosslinkable by
polyaddition (hydrosilylation), comprises: .alpha./ at least one
polyorganosiloxane (POS) bearing ethylenic and/or acetylenic
unsaturations [POS with .ident.Si-(unsaturated) units]; .beta./ at least
one polyorganosiloxane (POS) with .ident.Si--H units; .gamma./ a
catalytic combination comprising .gamma..1 at least one metallic catalyst
(preferably platinum based), .gamma..2 and at least one crosslinking
inhibitor; .delta./ a filler; .epsilon./ at least one adhesion promoter;
.rho./ at least one POS resin; .lamda./ at least one thermal resistance
agent; and .phi./ optionally at least one other functional additive.
Methods of making and using the subject composition are also described.