40377 Heavy Bodied Black Seam Sealer now boasts a shorter working time of 10 minutes and set time of 15 minutes. These times are consistent with all SEM two component seam sealers to increase body shop productivity. Packaging reflects this change in the upper left hand corner of the cartridge.

Use 40377 for sealing interior or exterios seams, joints and voids. Apply on bare metal, OEM finish, epoxy primers, and DTM urethane primer.

For detailed instructions, read the Technical Data Sheet.