HIBUILD SELF-LEVEL SEAM SEAL - 3M Automotive

The 3M Automotive HIBUILD SELF-LEVEL SEAM SEAL (SE39777) is a professional-grade, two-component, high-build self-leveling epoxy designed for critical automotive and industrial sealing applications. This controlled-flow seam sealer comes in a 7-ounce cartridge and delivers durable, flexible seals on a variety of substrates, making it an essential component for collision repair and restoration work. Its gray formulation is engineered to provide a robust, long-lasting barrier against moisture and corrosion.

Key Features

• OEM Recommended: Trusted by manufacturers for consistent performance and reliability.
• Direct-to-Metal Application: Can be applied directly to bare metal on non-flexing roof skins, as well as over OEM finishes, epoxy primer, and urethane primer.
• Rapid Paintability: Ready for top coating in just 15 minutes, streamlining repair processes.
• Permanent Flexibility: Maintains flexibility, preventing shrinking, hardening, or cracking over time, even with vehicle movement or temperature fluctuations.
• Controlled Flow: The self-leveling properties ensure a smooth, uniform finish without excessive spreading.

Applications

This versatile seam sealer is ideal for various professional applications, including sealing roof seams, drip rails, and trunk seams on automotive vehicles. It is also suitable for general industrial sealing where a high-build, self-leveling, and permanently flexible epoxy is required to protect against environmental elements and ensure structural integrity.

Specifications

• Type: High Build Self-Leveling Epoxy
• Container Type: Cartridge
• Container Capacity: 7 Ounce
• Color: Gray
• Working Time: 10 Minutes
• Setting Time: 15 Minutes
• Top Coat Time: 15 Minutes
• Cure Time: 1 Hour
• Temperature Rating: 70 Deg F (Operating)
• Form: Liquid
• Density: 1.37636 Gram per Cubic Centimeter at 20 Deg C
• Flash Point: 249 Deg C