The 6 Best Automotive Seam Sealers

Updated April 11, 2018 by Josh Darling

Best High-End
Best Mid-Range
Best Inexpensive
We spent 26 hours on research, videography, and editing, to review the top choices for this wiki. Most typically used in the restoration of classic cars, automotive seam sealants come in a small range of varieties. Used to cover both interior and exterior sheet metal overlaps in order to create an airtight finish, these products can either be applied via spraying or extruding, depending on your needs. Lovers of old autos in need of some TLC will find what they require here. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best automotive seam sealer on Amazon.

6. Transtar Ultra Flex

5. Carborundum EZ Repair

4. SEM Black

3. 3M Dynatron 550

2. Evercoat 365 Brushable

1. 3M Flexiclear


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Last updated on April 11, 2018 by Josh Darling

Born in historic Massachusetts, Josh is a freethinking young man with a heart of gold. Noted by many for his wit, grace, and humility, he enjoys reading, history, politics, videogames, baseball, and talking shop.


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