The Best 3M Car Sealant

Our 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.

Dynatron Auto Seam Sealer Caulk is a fast-skinning, permanently elastic, non-sagging formulation that is brushable and paintable. Our sealer provides excellent adhesion to bare metal or painted surfaces and is a non-staining, all-purpose autobody joint and seam sealer.

3M Self-Leveling Seam Sealer is a two-part epoxy designed for roof ditches (door skin hem flanges) and rear body panels, including tail light areas, wheel well flanges, etc. Our seam sealer offers a work time of approximately 8 minutes and can be painted in 15 minutes. Quick curing properties enhance automotive body shop productivity.

Product Description

3M Marine Adhesive Sealant 5200 is a tough, flexible polyurethane for permanent bonding and sealing your RV, boat or other watercraft. It is ideal for use on wood, gelcoat, fiberglass, metal and more. It is recommended for interiors, below the waterline and any other places that are shielded from sunlight. It applies right from the container – no mixing is required. It becomes tack-free in 48 hours, and cures to form a firm, flexible, waterproof seal on joints and boat hardware. Far more than a marine caulk, tough, flexible Marine Adhesive 5200 dissipates stress caused by vibration and shock, and won’t crack under dynamic force. It resists saltwater, wind, weather and temperature extremes for long periods of worry-free enjoyment on the water. In fact, for more than 50 years, 3M Marine Adhesive Sealant 5200 has been used and trusted as a marine sealant by professionals in some of the most demanding conditions on earth.

From the Manufacturer

3M Marine Adhesive Sealant 5200 is extremely strong and retains its strength above or below water line. Stays flexible too – allows for structural movement. Has excellent resistance to weathering and salt water.

Stress caused by shock, vibration, swelling or shrinking is effectively absorbed. Check the bonding and sealing jobs this product can handle for you: fiberglass deck to fiberglass hull, wood to fiberglass, portholes and deck fittings, motors on fiberglass transoms, under mouldings, hull seams above and below water line. Center board trunk joints. Between struts and planking. Stern joints. Deck housing, etc. Easy to apply with manual caulking gun. Won’t sag or flow in vertical or horizontal seams.

About 3M Industrial Adhesives and Tapes

For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. 3M Industrial Adhesives and Tapes include application-specific products that provide durability, strength, and special characteristics such as temperature resistance and short- and long-term protection. The 3M brand, across thousands of products, represents consistency, superior quality, and value.

These products on exceptionally high order fulfillment rates, breadth of available products and these are also complete line of Heavy-Duty Shop Products that will bring you years of reliable performance.

3M All-Around Autobody Sealant creates quick-drying seal on most interior and exterior automotive body joints and seams. Our medium-bodied, water-based seam sealer applies easily and adheres well to properly prepared primer and paint. It may also be smoothed to a featheredge with a wet finger to a smooth, clean appearance.

3M Fast Cure Auto Glass Urethane is a one-part, moisture-curing, auto glass urethane that produces an extremely fast-cure. We formulated this adhesive with high viscosity for accurate placement and high bond strength to meet a variety of application strength requirements. This urethane adhesive is ideal for those applications that require a fast cure and strong hold, such as windshield bonding.

3M Ultrapro Autobody Sealant is a heavy-bodied, solvent-based, seam sealer that adheres to painted metal, glass and aluminum. We formulated this autobody sealant to be quick-skinning, fast-curing and rapid-drying, making it ideal for applications that require speed and timeliness. In addition, this high-solids adhesive provides low shrinkage and remains flexible over time.