3M™ Urethane Seam Sealer is an excellent choice when sealing seams to prevent the intrusion of water, dust, and air, aiding in providing corrosion resistance at these locations. 3M™ Urethane Seam Sealers provide excellent gap filling properties and are designed to be used over epoxy or urethane based primers they should be top coated when exposed to ultra violent rays.

Sealing of seams to prevent intrusion of water, dust, air, fumes, may be used for interior or exterior seams of primer coated substrates.