Silicone pressure-sensitive adhesives with various amts. of 2,4-dichlorobenzoyl peroxide (I) used as crosslinking agent were prepd. to study of its effect on shrinkage of the adhesive film. The tests were performed according to the cross-cutting German method. The addn. of I resulted increasing the cohesion and decreasing the adhesion, tack and shrinkage of the self-adhesive film.