This SecureTac Clear 25.5" x 150' Mounting Adhesive is a high tack, high bond strength polyester mounting film coated on both sides with a pressure sensitive, aqueous acrylic adhesive. One side is protected by fine paper coated on both sides with siliconized polyethylene while the adhesive on the other side of the film is exposed and self-wound onto the roll. This 25.5" x 150' SecureTac Clear Permanent Mounting Adhesive is perfect for image decal and high-volume mounting of graphics onto difficult substrates such as Forex, MDF, Gatorboard, Ultraboard, Foamex, and Sintra.