A 5.0 mil. double coated tape featuring R-40 rubber adhesive with a polyester backing used for bonding similar/ dissimilar materials, such as metals, papers, paints and most plastics. R-40 is a pressure-sensitive, medium-firm rubber-resin adhesive system. It features good hloding power to a wide variety of materials including most plastics. 443 tape is not recommended for direct exposure to sunlight or other sources of ultra violet light.