Titebond 3 ultimate waterproof. The waterproof formula passes the ANSI/HPVA Type I water resistance specification and offers excellent bond strength, long open time  and lower application temperature. Titebond 3 Ultimate is non-toxic, solvent-free and can be cleaned with water - it is safer to use than traditional waterproof wood glues. It provides strong initial adhesion, is easily sanded without softening and is FDA approved for indirect food contact (cutting boards and serving boards). Titebond 3 Ultimate is the ultimate in wood adhesives - ideal for both interior and exterior applications.