3M 4646 Very High Bonding Tape is designed to spread the load stress across the joint. The pressure-sensitive adhesive tape can accommodate varying contraction and expansion rates. This VHB foam tape roll can be used to replace drilling, welding, grinding, and screwing with the virtually invisible fastening of metal substrates. This means immediate handling strength—a big plus in certain working environments and repair jobs. The double-sided tape can be used for fastening stiffeners, panels, decorative materials, and nameplates. Heavy-duty acrylic tape offers the assurance of solvent & moisture resistant bonding along with impressive durability.This tape is best used after surface preparation and sometimes a primer is necessary depending on materials for bonding.