D4 Wood Adhesive is an industrial grade D4 wood adhesive based on the latest hybrid resin technology. Everbuild D4 Wood Adhesive provides the user with a waterproof  D4 grade wood adhesive with none of the safety issues associated with conventional  isocyanate containing (polyurethane) D4 grades. Everbuild D4 Wood Adhesive can be used internally and externally and gives a high strength, water, impact and temperature resistant bond that is usually stronger than the wood itself.