2.can strongly stick to most traditional building materials.
TOP BEST 653 mastic sealant
•Top best-651 is a kind of one-component polyurethane sealant and after reacting with moisture it will become one kind of permanently elastic material. And it can strongly stick to most traditional building materials.
•It can be used for sealing and bonding in all kinds of building materials such as concrete, wood, aluminum, painted metal, polyester, glass, PVC, concrete tile, earthen brick, and chinaware.
•3, Technical date:
-Appearance:white or grey --Density(g/cm³): 1.2+0.05