CONTROLLED FLOW SEAM SEALER - 3M Automotive

The 3M Automotive 8329 Controlled Flow Seam Sealer is engineered for professional technicians requiring precise, factory-quality seams in collision, restoration, and fleet repair environments. This advanced two-part urethane formula delivers consistent control and a non-sag characteristic, allowing for clean, accurate bead placement on various automotive and industrial surfaces. It helps minimize rework and extensive clean-up, contributing to improved workshop efficiency.

Key Features

• Controlled Flow Formula: This low-slump, non-sag material ensures neat and accurate bead placement, even on vertical or overhead surfaces and intricate body seams. The sealer is designed to flow only 1 to 2 inches on non-level surfaces, preventing excessive waste and maintaining uniform film thickness.
• Strong Adhesion: Provides robust bonding to properly prepared automotive metals, 2K urethane, 2K epoxy primer, and OEM finishes, ensuring durable and long-lasting sealing performance.
• Flexible After Cure: The urethane technology allows the sealer to remain elastic, withstanding torsional stress, vehicle body flex, vibrations, and extreme temperature changes without cracking or shrinking.
• Paintable Surface: Compatible with most automotive refinish systems, this sealer can be painted in approximately 40 minutes, allowing for seamless integration and restoration of the original factory appearance in visible repair areas.
• Professional-Grade 3M Formulation: Developed by 3M Automotive, this two-part urethane sealer offers tough and flexible performance for reliable results in demanding automotive applications.

Applications

The 3M Automotive 8329 Controlled Flow Seam Sealer is suitable for professional body shops, fleet maintenance facilities, and restoration projects. Common applications include:

• Sealing body panel seams and joints on cars, light trucks, and commercial vehicles.
• Applying controlled beads in trunk gutters, floor pans, rocker panels, and door skin seams where precise shape is critical.
• Replicating original factory seam appearance during collision repair or rust repair.
• Creating effective seals to help prevent water, dust, air, and exhaust fumes from entering vehicle cabins or cargo areas.

Specifications

• Manufacturer: 3M Automotive
• Model number: 8329
• Product type: Controlled Flow Seam Sealer
• Weight: 1.2 lb
• Dimensions: 12 x 9.6 x 5.3 in