3M™ Scotch-Weld™ Epoxy Potting Compound DP270 is low viscosity for easy dispensing and potting. It is non-corrosive to copper, minimal exotherm and very low shrinkage – making it well-suited for potting and bonding electronic and electrical components. - 3M Scotch-Weld epoxy potting compound/adhesive DP270 is ideal for the potting and encapsulation of many heat sensitive or delicate components such as glass diodes and sensors as well as for transformers, coils, chokes, relays, etc. This product produces no exotherm in 5 - 10g masses and a very slight exotherm in larger masses.