DAP 10 Oz Dynaflex Ultra Advanced Exterior Sealant Iron Gray 18215 - (Box of 12)

DAP Dynaflex Ultra is formulated for demanding window, door and siding applications. No cracking, chalking or crumbling. Repels water absorption for an ultra weatherproof seal. Stays flexible to endure expansion & contraction caused by sun, heat, cold wind & rain. Strong multi-surface adhesion. Meets ASTM C920. Resists dirt & dust build up. No color fading or yellowing, bubbling, blistering, softening or hardening. Lifetime mold, mildew & algae resistance. Excellent paint finish results – no cracking, glossing or dulling.