3M™ Scotch-Weld™ Urethane Adhesive 3532 is a brown, non-sag, two-component polyurethane adhesive. This urethane adhesive has a 10 minute work life for spreading or repositioning. Ideal for bonding dissimilar substrates, such as composites, SMC, FRP, many plastics, ceramic, wood, rubber and metal. - 3M Scotch-Weld 3532 brown urethane adhesive is compatible with aluminum, plastic and steel materials with a 24 hr cure time. Provides a 5 - 15 min working time. Works in a mix ratio of 1:1. Delivers great performance with a shear strength of 2000 psi, tensile strength of 3000 psi and peel strength of 25 piw.