3M Flexiclear Body Seam Sealer creates strong and airtight seals on exterior joints and seams. This medium-bodied sealer offers reliable adhesion on hard, impervious automotive surfaces. This is a low modular sealer, a formulation which offers more elasticity for applications where flexibility is required.3M Flexiclear Body Seam Sealer is a caulkable exterior sealer which adheres to surfaces such as primed and painted metal, glass and aluminum. Our sealer dries clear and resists yellowing for a clean, low profile appearance. It uses a standard "caulk" style dispensing system. It's fast drying and ready for painting in approximately 45 minutes. Typical applications for this sealer include: Adhesion to scuffed primer, clean paint, glass, and aluminum, sealing edges of vinyl auto roof tops, sealing exterior opera-style windows, sealing headlight/taillight seams, sealing exterior RV seams, sealing any other visible exterior seams that will not be painted afterwards