3M4920 is 3M double-sided adhesive foam substrate in a double-sided adhesive, are VHB Adhesive (pressure sensitive adhesive department), thickness of 0.4MM, color is white 3M4920 3M4920 color, with superior viscosity, UV, good solvent resistance, but also it has a soft, paste service good properties, high tensile strength, shear strength, can be used in the conventional method of fixing screws, rivets, spot welding replaced with double-sided adhesive tape to make the product surface is more smooth, beautiful, operation more simple, sealing better, the effect is more durable, very easy disassembly.