3M Adhesive Tape RP25, 1" Diameter Circles (pack of 5) Go to amazon.com Related posts Where to find m3 tape? FeatureAdhesive: Multi-Purpose AcrylicAdhesive Carrier: Conformable Acrylic Foam (closed cell)Liner: White DK paper (red 3M VHB print)Density: 45 lb./ft.3 (720 kg/m3)Tape Color: Gray Description3M VHB RP25 is a 25 mil, gray, heavy duty double sided, pressure sensitive foam tape designed for industrial strength bonding, attaching, and mounting.