MS401 Mastik Instant Setting Glue for EPDM Gasket Seals. It can be used ... the EPDM gasket seals directly. MS401 Mastik Instant Setting Glue for EPDM Gasket Seals.It can be used to ... lock, door locks, window bolt, door bolts, PU Foam, glass glue, cleaner, Aluminum rail, brush seal, gasket seal, fasten bolts, ... tools, electric tool, welder, etc. MS401 Mastik Instant Setting Glue for EPDM Gasket Seals