H.B. Fuller Extra/Build® Mirror Mastic is a safe, permanent bond for professional mirror installations. Extra/Build® allows you to build up and fill gaps up to 2½" without any sag. Extra/Build® is blended to achieve maximum build with strong adhesion between mirror and drywall, wood, metals, and many more surfaces.

Gunther Premier® Plus Mirror Mastic is a high-quality adhesive formulated to provide a strong, permanent bond between glass and mirrors (meeting federal specifications) and various substrates. It is a very versatile product that can be built out to 2" or squeezed down to 1/16". Premier® Plus can be safely used on acrylic mirrors and is designed for installations where movement is an issue, such as gyms, elevators, and dance studios.