500 Envirocryl High Build Universal Clear Sealer is an acrylic urethane high build water white clear sealer for use under Envirolak topcoats. The product provides excellent clarity and is easy to sand after 1 hour. It can be used 1K or can be catalyzed with CAT100-LV hardener (4-6hr pot life) for improved adhesion and chemical resistance making it suitable for use as a toner over old solvent-based finishes. Used in conjunction with Envirolak water-based topcoats will meet KCMA standards. Designed for interior wood finishing applications such as cabinetry, tables, furniture and millwork. 1 Gallon pail.