Coghlan's Seam Seal 4003-965
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Coghlan's Seam Seal


Rocksolid Guarantee

Shop with confidence. If it's not working out like you expected, you can return it.

Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

It lasts longer than 30 days, but not forever. We'll be fair about it. We're all members here.

Price match guarantee

Found a better deal in Canada? Up to 30 days after purchase – we’ll match it.

If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.

If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.

See available Cleaners and waterproofers


Show Description

This is the original stitch-penetrating sealer that we’ve come to know and love. It combines a thin formula with an active and effective solvent.

  • Designed to soak in and wick along surfaces, extending the water-resistant range.
  • Will harden over time and become somewhat crusty. For this reason it does not make an ideal continuous waterproof film for bridging a seam-edge or gap, but it will penetrate far into materials.
  • Even when dry it continues to inhibit water wicking.

Tech specs

Show Tech specs
Type Seam sealer
Made in USA