3M(TM) Scotch-Weld(TM) Rubber Toughened Instant Adhesive RT3500B, is a rubber toughened, high viscosity-gap filling adhesive. 3M(TM) Scotch-Weld(TM) Rubber Toughened Instant Adhesive RT3500B maximizes impact, peel and thermal cycling resisitance while providing tough flexible bonds. Ideally suited for bonding flexible substrates and dissimilar materials.