MS170 Mastik Clear Gap Sealer can be used on the profiles directly to repair ... , even for the crack of 2.5mm MS170 Mastik Clear Gap Sealer 1.Usage: It can be used on the profiles ... , window bolt, door bolts, PU Foam, glass glue, cleaner, Aluminum rail, brush seal, gasket seal, fasten bolts, pneumatic tools, electric tool ...