3M™ 4611 VHB™ (Very High Bond) Tape is a 45 mil double-sided acrylic foam tape in gray, combining a dark gray acrylic foam core with an acrylic adhesive system and a red polyethylene liner. This construction delivers structural-grade bonding strength without mechanical fasteners, making it one of the more capable permanent-mount tapes in the VHB line.

Its UL 746C listing and resistance to moisture, UV radiation, and solvents make it well suited for outdoor signage, architectural panel attachment, and industrial fabrication environments. Metal-to-metal bonding, gasket mounting, and component fastening in manufacturing or maintenance settings are common applications where the tape's performance under sustained stress is an advantage.

Rated from -31°F to 300°F, the tape maintains bond integrity across high-heat and cold-weather conditions. Each roll measures 1/2 inch wide by 5 yards long, weighs approximately 0.28 lbs., and is sold individually. Ships via parcel carrier.