3M Urethane Seam Sealer 08367, Black, 310 mL Cartridge
3M Urethane Seam Sealer 08367, Black, 310 mL Cartridge
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3M Urethane Seam Sealer 08367, Black, 310 mL Cartridge

|4 ratings

Key item features

  • Robust Adhesion: This single-component urethane formula offers excellent, adhesion-promoted bonding to bare metal, primed metal, and painted surfaces.
  • Environmental Resilience: Its moisture curing properties ensure excellent performance and maintain integrity in high-heat and humid environmental conditions.
  • Flexible Durability: A non-shrinking, non-cracking, low-to-no odor formula that remains flexible, providing superior results over solvent-based sealers.
  • Rapid Finishing: Fast-curing allows sanding in as little as 15-20 minutes and makes the sealer paintable within 30-45 minutes, accelerating project completion.
  • Material Compatibility: An advanced formula is specifically recommended for secure use with both galvanized steel and aluminum surfaces.
  • Void Filling: Possessing a thick, super creamy consistency, it spreads easily, enabling efficient filling of large voids and actively helping prevent corrosion.
  • Pristine Quality: Vacuum processed and pinhole free, this urethane seam sealer ensures ultimate purity and high quality for consistent results.
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Customer ratings & reviews

2.3 out of 5 stars
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4 ratings4 reviews
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  2. 4 stars0% (0)
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Showing 1-3 of 4 reviews

Feb 26, 2022
Reviewer name: BasedCody
5 out of 5 stars
5 out of 5 stars review

Just what I needed

Bought this to restore my car, it does the job perfectly. Don't really know what else to say. Get the applicator gun too, makes life much easier.If you want the right stuff just get 3M. Don't waste your time and money on knock offs of 3M products

Review from 3m.com
Helpful?5W75C2VZSMG934368693
May 15, 2024
Reviewer name: Ash
Sold byNational Tool Warehouse
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

wrong color sent

I ordered it because it said it was black sealant. I got grey sealant sent instead. The product itself is good. but the seller sent the wrong color.

Incentivized Review
Helpful?5W75C2VZSMG934368693
Sep 26, 2025
Reviewer name: Bob44
1 out of 5 stars
1 out of 5 stars review

Smell's terrible

This product has rendered my vehicle undrivable. I sealed the driver side floor pan two months ago and the fumes still make my eyes water. The air inside my car is clearly toxic. To be fair, the product does seal well.

Review from 3m.com
Helpful?5W75C2VZSMG934368693
reply from 3M Care Team

Hello, thank you for taking the time to leave your review. Your safety is our top concern and we would appreciate the opportunity to discuss this with you. Please connect with our team at 1-800-494-3552 Mo-Fri 8am-4:30pm CT so that we can gather some additional details. We look forward to your call.

Current price is $35.85
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