10.3 oz. tube - 551LSW, White - Non Sag for Vertical Surfaces. Helps create a seal along roof edges, around air vents, vent pipes and screw heads. Works with any roofing material. Excellent adhesion to aluminum, mortor, wood, vinyl, galvanized metal and concrete. Improve the ability to continuouslyseal and reamain flexible. Color matched, lap sealants are UV stabilized to prevent deterioration and discoloration. Will not stain or discolor any materials to which it is applied.