3M 550 Dynatron™ Auto Seam Sealer, 550, grey, 12 oz. (340 g), Colour: Gray, 3M Stock No. 7000125068

Dynatron™ Auto Seam Sealer, 550, is a fast-skinning, permanently elastic, non-sagging caulk formulation that is brushable and paintable. It helps provide excellent adhesion to bare metal or painted surfaces and is a non-staining, all-purpose autobody joint and seam sealer.