HEAVY BODIED SEAM SEALER - WHITE - seymour - duramix

The Seymour-Duramix 1380 Heavy Bodied Seam Sealer in White is a professional-grade, two-component urethane formula engineered for robust and permanent sealing in automotive, marine, and industrial applications. This high-viscosity product delivers exceptional adhesion, flexibility, and durability, crucial for restoring factory seam integrity and protecting against moisture, dust, and corrosion.

Key Features

• Heavy-Bodied, Non-Sag Formulation: Designed with high viscosity to effectively seal horizontal and vertical voids, joints, and seams without sagging or running, making it ideal for overhead applications.
• Superior Direct-to-Metal Adhesion: Provides excellent bond strength to a wide range of substrates, including bare metal, primed surfaces, aluminum, e-coat, fiberglass, FRP, SMC, and OEM finishes, often without the need for primer.
• Rapid Workflow & Cure Times: Features a convenient 1:1 mix ratio with a 10-15 minute work time, allowing for efficient application and tooling. It is handling dry in 30-45 minutes, sandable in 45 minutes, and paintable immediately, achieving a full cure in 6-8 hours.
• Durable & Flexible Seal: Maintains flexibility to resist vibration, expansion, and contraction, preventing cracking and ensuring a long-lasting protective barrier.
• OEM Finish Compatibility: The white color provides a clean, factory-like appearance and can be painted over once cured to perfectly match the vehicle's original finish.
• Corrosion and Contaminant Protection: Creates a strong, protective barrier against water intrusion, dust, air, and other inert contaminants, significantly extending the lifespan of repairs.

Applications

This heavy-bodied seam sealer is an indispensable tool for professional technicians involved in automotive body repair, restoration projects, and custom fabrication. It is commonly utilized for sealing interior and exterior seams such as trunk floors, fender wells, cowl seams, door skins, hoods, and other panel joints, effectively duplicating OEM seam appearance. Its robust performance also makes it suitable for marine and general metal repair applications requiring a durable, flexible, and protective seal.