Positionable-repositionable pressure-sensitive adhesive

A laminate comprising a substrate and a layer of pressure-sensitive adhesive for adhering the laminate to a mounting surface with an ultimate peel strength, said pressure-sensitive adhesive containing a pressure-sensitive acrylic adhesive base resin, a detackifying particulate which normally reduces both the tack and ultimate peel strength of said pressure-sensitive adhesive, and a detackifying resin, said detackifying particulate being present in an amount substantially no greater than is consistent with said ultimate peel strength, and said detackifying resin enhancing the effectiveness of said detackifying particulate to reduce the initial tack and suppress the adhesion build-up of said laminate and to subsequently achieve said ultimate peel strength.

A laminate comprising a substrate layer and a layer of pressure-sensitive adhesive having an outer surface adapted to be adhered to a mounting surface, said pressure-sensitive adhesive containing a normally tacky pressure-sensitive acrylic adhesive base resin, a non-tacky thermoplastic low-molecular weight detackifying resin, and a solid detackifying particulate having an average particle size less than about four microns, said detackifying resin and particulate interacting to reduce the tack and adhesive build-up upon installation of the laminate to the mounting surface and, upon passage of time and/or application of thermal energy, enabling adhesion build-up to bond said laminate to said mounting surface with increased peel strength.