Ultrapro Urethane Seam Sealer, Gray - 3M Automotive

The 3M Automotive 8361 Ultrapro Urethane Seam Sealer in Gray delivers a professional-grade, one-part, moisture-curing solution essential for critical collision repair, rust repair, and restoration projects. This heavy paste urethane formula ensures ease of application and tooling, allowing professional technicians to achieve consistent, durable, and OEM-style seam finishes.

Key Features

• Professional Urethane Chemistry: A high-build, non-sag urethane formula allows for precise application on vertical and overhead seams, effectively filling gaps and preventing corrosion.
• Rapid Paint-Ready Time: The 3M 8361 sealer skins quickly and is typically ready for painting within 30-45 minutes, significantly optimizing collision repair efficiency for professional technicians.
• Robust Adhesion: Delivers reliable bonds to bare and primed steel, aluminum, and properly prepared painted surfaces across various vehicle types. It can also function as a weld-through sealer with squeeze-type resistance spot welding equipment.
• Lasting Flexibility: Engineered to remain permanently flexible, accommodating vehicle vibration, panel movement, and temperature fluctuations without cracking or shrinking.
• Corrosion & Leak Protection: Effectively seals out water, dust, and air, contributing to long-term corrosion prevention in automotive body seams and joints.

Applications

Utilize the 3M Ultrapro Urethane Seam Sealer 8361 for interior and exterior seams on components such as door skins, rocker panels, rear body panels, trunk gutters, floor pans, wheel housings, door jambs, and hem flanges. This professional-grade sealer is suitable for collision repair, rust repair, and restoration on passenger cars, light trucks, commercial fleets, many RVs, and trailer body structures requiring a paintable, OEM-style seam.

Specifications

• Manufacturer: 3M Automotive
• Model: 3M 8361
• Product Name: Ultrapro Urethane Seam Sealer
• Color: Gray
• Base: One-part moisture-curing urethane
• Package Size: 310 mL (10.5 oz) foil pack
• Shipping Weight: 0.83 lb
• Approx. Package Dimensions: 2 x 2 x 1 in.