3M™ Heavy-Bodied Seam Sealer
The 3M™ Heavy-Bodied Seam Sealer is a two-part epoxy seam sealer for all general purpose automotive sealing.

Good products.
Local knowledge.
KNOW THE
PROJECT.
PLAN THE
DETAILS.
The 3M™ Heavy-Bodied Seam Sealer is a two-part epoxy seam sealer for all general purpose automotive sealing.
Start with the surface, the existing finish and the way the space or equipment is used. Our team can help you work through product choices and the requirements for your project.
Get into the details
The project.
Identify the material, its condition and the work you’re planning.
The system.
Confirm product suitability, preparation and compatibility with our team.
The conditions.
Check the current manufacturer instructions for application, installation or maintenance requirements.
Full product details, applications & manufacturer specifications
The 3M™ Heavy-Bodied Seam Sealer is a two-part epoxy seam sealer for all general purpose automotive sealing.
It cures quickly to a tough, strong bead for lasting seam sealing protection and is used on door skins, floor pans, trunk floors, roof seams, and many other applications. The self-mixing system ensures a proper mix ratio every time – delivering a consistent cure rate and strength. This black 3M™ Heavy-Bodied Seam Sealer seam sealer can be used to seal vertical or horizontal seams on automotive surfaces primed with a 2K urethane, 2K epoxy primer, or clean, sanded paint.
Its non-flowing, heavy-bodied formula allows technicians to texturize the seam to match OEM seam sealer appearances and duplicate OEM beads. Our flexible formula works within a wide range of temperatures with no shrinking or cracking to achieve strong, durable construction. It offers a fast setup time of 6 minutes, decreasing downtime and allowing technicians to continue repair procedures quicker, increasing productivity.
Recommended uses
Automotive Body Repair
Explore related categories
BIG PROJECT?
LET’S TALK.
Share the surface, its condition and what it needs to stand up to. We’ll help you work through the product choices and preparation.
Ask about 3M™ Heavy-Bodied Seam Sealer