DescriptionTaylor Signature Aspen is a 1-part, 1-step elastomeric wood adhesive featuring antimicrobial technology and high-strength membrane properties. This modified urethane (isocyanate-free) formula provides 90% RH moisture protection and acts as a 90% moisture vapor barrier, eliminating the need for shot-/bead-blasting and providing sound reduction with crack isolation. Specifications 1-part, 1-step application with antimicrobial technology 90% RH moisture protection, 90% moisture vapor barrier Modified urethane (isocyanate-free), sound reduction and crack isolation Coverage: 50 sq ft per gallon Packaging: 4 gallon pail