BARE METAL SEAM SEALER - 3M Automotive

The 3M Automotive 8310 Bare Metal Seam Sealer is a professional-grade, two-part epoxy system engineered for durable and reliable body repair in both automotive and industrial environments. This high-performance 3m bare metal seam sealer provides direct adhesion to properly prepared bare metal surfaces, including steel, galvanized steel, and aluminum, and is also compatible with primed or painted substrates. It forms a robust, flexible barrier, offering essential protection against moisture, dust, and corrosive elements to maintain vehicle integrity and appearance.

Key Features

• Direct-to-Substrate Adhesion: This 3M bare metal seam sealer is formulated for optimal adhesion directly onto properly prepared bare metal surfaces like steel, galvanized steel, and aluminum, as well as primed or painted substrates, ensuring a strong and comprehensive bond for lasting repairs.
• Durable & Flexible Seal: Delivers an enduring seal for automotive and industrial seams that resists shrinking, cracking, and outgassing, curing to a tough yet flexible state. This flexibility accommodates minor body movements across a wide temperature range from -20°F to 200°F.
• Non-Sagging & Toolable Formula: Its heavy-bodied, non-sagging composition allows for clean, efficient tooling on both vertical and horizontal seams, assisting technicians in consistently recreating an OEM seal appearance.
• Fast Curing & Paintable: Cures in as little as 15 minutes at 70°F, streamlining shop workflow. The neutral beige color and fully paintable surface allow for seamless integration with common automotive paints.
• Integrated Corrosion Inhibitors: Contains chemical corrosion inhibitors to actively help prevent rust and extend the lifespan of repaired metal joints and panels, offering enhanced protection against environmental elements.
• Consistent Self-Mixing Epoxy: The dual-syringe cartridge accurately self-mixes the two-part epoxy, ensuring consistent component ratios, optimal strength, and reliable cure speed without manual preparation.

Applications

This versatile sealer is essential for automotive body repair in critical areas such as trunk floors, door skins, roof seams, and wheel wells. It is also utilized for corrosion prevention in exposed metal joints and seams following welding or panel replacement in both automotive and industrial settings. The 8310 Bare Metal Seam Sealer is an excellent choice for modern vehicle repairs and classic car restoration projects that demand a high-performance, direct-to-metal solution for lasting results.

Specifications

• Manufacturer: 3M Automotive
• Model Number: 8310
• Weight: Approximately 0.8 lbs
• Dimensions: Approximately 12 x 9.6 x 5.3 inches
• Container Size: 200 mL Cartridge