3M Scotch-Weld PUR adhesive applicator accessories are designed to help maintain and add functionality to your 3M Scotch-Weld PUR system. Choose from a variety of applicator tips, nozzle assemblies and air valve kits to find the right accessories for your stringent project requirements. PURs (polyurethane reactive adhesives) are a family of 1-component, moisture curing, urethane adhesives. These adhesives are applied warm and can bond a wide variety of substrates such as wood, fiber reinforced plastic and many other plastics to themselves, to metal and to glass. With the handheld 3M Scotch-Weld PUR adhesive system, you have the practical benefits of two technologies in your assembly operation. This single component system combines structural adhesive benefits and hot melt adhesive speed for wood, plastic and more.