It is designed not to mar your inside frame
They are resistant to atmospheric corrosion
safe guarding combination
sealing sill plates and wall joints
Appearance graded and partially air-dried
MasterSeal NP1 10.1 Oz. Polyurethane Sealant, Limestone genesis 400 It is designed not toA versatile moisture curing high performance polyurethane sealant with permanent elasticity (Formerly: Sonolastic NP 1). For use on active, vertical and horizontal interior, exterior joints including expansion wall joints, floor and pavement joints, curtain walls, panel walls, precast walls, window frames, structural components, dams, spillways, and storm water drains. Substrates include concrete, masonry, aluminum, and wood. Bonds to concrete,