3M™ Scotch-Weld™ Plastic & Rubber Instant Adhesive PR600 is a medium viscosity instant adhesive. The PR600 instant adhesive is formulated to give exceptional performance on difficult-to-bond substrates, such as EPDM, nylon, polypropylene and polyethylene with use of an appropriate primer. Once applied, the glue has fast handling time and cure to keep jobs moving quickly.