MS170 Mastik Clear Gap Sealer can be used on the profiles directly to repair and ... for the crack of 2.5mm MS170 Mastik Clear Gap Sealer 1.Usage: It can be used on the profiles directly ... glue, cleaner, Aluminum rail, brush seal, gasket seal, fasten bolts, pneumatic tools, electric tool, welder, etc. MS170 Mastik Clear Gap ...