Patent ID: 8153206

Claim:
A process for varnishing a support substrate other than an architectural textile, the process comprising: (a) forming a top coat layer of a varnish composition onto a surface of a support substrate comprising a silicone or silicone elastomer, wherein the varnish composition comprises: A. at least one alkenylsilane; B. at least one catalytic system comprising: B/1 at least one organometallic condensation catalyst; B/2 at least one metal M chelate and/or at least one metal alkoxide of general formula M(OJ) n , wherein n=valence of M, J=linear or branched C 1 -C 8 alkyl radical, and M is selected from the group consisting of Ti, Zr, Ge and Al; wherein said catalyst system comprises B/2 or a combination of B1 and B/2; C. at least one ultrafine filler having a mean particle diameter of less than or equal to 0.5 μm; D. optionally, at least one arylsilane other than A; E. optionally, at least one other silane other than A and other than D; F. optionally, at least one thickening agent; and G. optionally, at least one functional additive, and (b) cross-linking the top coat layer of the varnish composition to form an outer layer of cross-linked varnish on said substrate, wherein the step of crosslinking the top-coat layer of said varnish composition to form an outer layer cross-linked varnish on said substrate comprises irradiating the surface of said support to which said varnish composition has been applied with infrared radiation.