Interior Projects Adhesive, offers water clean-up when wet, develops strength rapidly, and has excellent water resistance and long-term holding power when set. Certified by the GREENGUARD Environmental Institute to meet their Children and Schools standard for indoor air quality. Meets all air quality regulations. Recommended for interior use on paneling, molding, corkboard, drywall, furring strips, plywood, hardboard, foamboard and other common building materials. Not recommended for exterior use or for application of ceiling tile, finished floors, mirrors, plastic & vinyl, or foamboard to foamboard. Should not be used in basement applications.