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HEAVY BODIED SEAM SEALER - GRAY - seymour - duramix

Part #: 1390

The Seymour - Duramix 1390 Heavy Bodied Seam Sealer in Gray is a professional-grade solution engineered for demanding automotive and industrial applications. This robust sealer delivers a durable, flexible, and watertight seal, crucial for maintaining structural integrity and preventing moisture intrusion in critical areas. Its formulation is designed to meet the rigorous standards of professional technicians and mechanics, ensuring lasting performance.

Key Features

  • Heavy-Bodied Consistency: Provides excellent gap-filling capabilities and sag resistance, making it suitable for vertical and overhead applications without dripping or running.
  • Superior Adhesion: Forms a strong, permanent bond to a variety of substrates, including bare metal, primed surfaces, body fillers, and painted components.
  • Flexible & Durable Seal: Designed to withstand vibration, flexing, and extreme temperature fluctuations common in vehicle operation, preventing cracking and adhesion loss over time.
  • Paintable Finish: Once cured, the gray seam sealer can be easily painted over, allowing for a seamless and aesthetically integrated finish with existing vehicle coatings.
  • Efficient Curing: Promotes an efficient workflow by curing at a rate that allows for subsequent steps in the repair or manufacturing process to proceed without significant delay.
  • Gray Color: The neutral gray color blends effectively with many common automotive and industrial finishes, contributing to a professional appearance.

Applications

This heavy-bodied seam sealer is ideal for a wide range of sealing tasks within automotive collision repair, restoration, and industrial fabrication. Common applications include sealing weld seams, trunk gutters, floor pans, firewall seams, and door skin interiors. It is also highly effective for general industrial sealing where a flexible, durable, and weather-resistant barrier is required to protect against environmental elements and prevent leaks.

We have 12 in stock

$42.86

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
Add to Cart:

This product was added to our catalog on Tuesday 30 June, 2026.

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