Heavy Bodied Black Seam Sealer - Sem Products

The SEM Products 40377 Heavy Bodied Black Seam Sealer is a high-performance, two-component epoxy engineered for demanding automotive and industrial repair applications. This professional-grade sealer offers exceptional gap-filling capabilities, robust adhesion, and long-lasting flexibility to ensure durable seals on critical seams and joints. It provides a factory-grade black finish and effective protection against environmental elements, supporting high-quality vehicle restoration and collision repair.

Key Features

• Heavy-Bodied Consistency: Designed for superior gap-filling and durable seals on bare metal, OEM finishes, and primed surfaces, ensuring a thick and consistent application that holds tooling marks.
• OEM-Matching Black Finish: Delivers a professional, factory-grade black appearance that seamlessly integrates with existing vehicle finishes and helps minimize post-inspection liability.
• Robust Adhesion & Flexibility: Bonds securely to common automotive substrates, including bare metal, primed surfaces, and painted body panels, remaining flexible without shrinking or cracking over time.
• Non-Sag Performance: Maintains its position on vertical and overhead seams, preventing drips and ensuring precision during application, while holding tooling marks throughout the working time.
• Immediate Paintability: Allows for immediate painting with most solvent-based coatings once cured, streamlining repair processes and reducing downtime.
• Corrosion Barrier: Offers effective protection against water, dirt, and road salts, safeguarding repaired areas from rust and deterioration.

Applications

This heavy-bodied black seam sealer is suitable for a wide range of professional automotive and industrial uses, including sealing body panel seams, joints, and weld lines in vehicle restoration and collision repair. It is effective for filling gaps and voids in automotive sheet metal construction and protecting against moisture and dust intrusion in vehicle interiors and exteriors. Typical application areas include trunk seams, door skins, floor pans, and firewall areas to prevent leaks and corrosion.

Specifications

• Manufacturer: SEM Products
• Model Number: 40377
• Product Name: Heavy Bodied Black Seam Sealer
• Weight: 0.845 lbs (7 oz cartridge)
• Dimensions: 8 x 5 x 2 inches
• Working Time: 10-15 minutes at 70°F (21°C)
• Cure Time: 1 hour at 70°F (21°C)