3M Scotch-Weld 3748 Q hot melt adhesive for bonding plastics (including difficult-to-bond ones like PE or PP) to other materials. High speed of achieving strength. The adhesive can be precisely applied in dots or lines using a special hot melt extrusion gun.Technical specifications system: hot melt non-reactive adhesive base: polypropylene melting temperature: 220 °C temperature resistance: 80 °C UV resistance: very good moisture resistance: good chemical resistance: very good application: hot melt extrusion gun