3M™ Urethane Seam Sealer is a high solids seam sealer ideal for sealing automotive and RV seams and joints. It adheres well to bare metal, primed metal and painted surfaces, and if desired can be smoothed to a featheredge and/or brushed. Tack free and paintable after 30-45 minutes, this urethane formula is permanently flexible and offers superior performance to solvent-based sealers. 3M™ Urethane Seam Sealer is an excellent choice when sealing interior or exterior seams to help prevent the intrusion of water, dust, and air, aiding in providing corrosion resistance at these locations. Choose this seam sealer for high-quality sealing of seams and joints on primed metal or painted surfaces, and even on bare metal. It applies easily and is formulated for long-lasting support to the seam without shrinking, cracking, or causing unpleasant odors. With its thick consistency, our 3M™ Urethane Seam Sealer is an excellent gap sealer and you can feel confident using this sealer to fill large voids between parts where they occur.

Designed to be used over epoxy or urethane based primers, the sealer comes in several colors to enable color matching. Note that the sealer should be top coated when exposed to ultra violet rays. While some seam sealers require cure time in a completely dry environment, our 3M™ Urethane Seam Sealer is moisture-curing so it provides a reliable seal regardless of moisture or humidity in the air. It can be painted after 30-45 minutes.

This sealer comes in either a flexible foil pack or rigid metal cartridge. Application of the cartridge sealer requires the use of a 3M™ Single Component Cartridge Applicator Gun - pneumatic (08990) or 3M™ Professional Caulking Gun (08993), and 3M™ Threaded Cartridge Nozzles (08187).  Foil packs are designed for use with 3M™ Flexible Package Applicator Gun - Pneumatic (08399) or 3M™ Flex Pack Applicator (08398) these include one applicator nozzle, additional nozzles may be acquired as PN (08188). 

Benefits of 3M Urethane Seam Sealer

• High quality, single component formula adheres well to bare metal, primed metal and painted surfaces.
• Moisture curing property provides excellent performance in high heat and humidity environments.
• Non-Shrinking, non-cracking, low/no odor formula remains flexible and offers superior results to solvent-based sealers.
• Paintable after 30-45 minutes.
• Thick consistency is able to fill large voids.
• Can be smoothed to a featheredge or brushed.

Technical Features of 3M Urethane Seam Sealer

• Size: 310ml
• Colour: Beige