Polyurethane (urethane) encapsulants are often used in potting delicate components due to their flexible, rubbery, elastomeric consistency after curing. These properties make them a good choice for applications that require abrasion resistance, and feature better crack resistance compared to other chemistries. Ellsworth Adhesives supplies polyurethane and urethane encapsulants from ELANTAS PDG, ResinLab, and Resin Designs with room temperature and heat cure systems.