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Flex Seal Family of Products Flex Seal MAX Black Liquid Rubber Sealant Coating 2.5 gal

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Covers up to 375 sq. ft. per can with no primer needed - a UV-resistant liquid rubber coating for indoor and outdoor jobs.
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $203.99, average $239.99
In-Store Exclusive

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Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

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Why isn't this online? The whole story →

About Product Overview

This 2.5-gallon can of Flex Seal MAX liquid rubber sealant coating is built for jobs that need real coverage - up to 375 square feet per can - without the extra step of a primer coat. It goes on as a liquid and cures into a flexible, UV-resistant rubber membrane that stands up to sun, rain, and everyday wear whether you're working indoors or out.

Because it's rated for most surfaces, it works across a wide range of sealing and coating projects around the house or property. Plan for a 48-hour window before recoating and the same for full cure, and clean tools and drips with mineral spirits while the material is still wet. Made in the USA, this larger 2.5-gallon size suits bigger projects where the smaller cans just won't stretch far enough.

  • Container size: 2.5 gallons
  • Coverage area: up to 375 sq. ft.
  • No primer required
  • UV resistant for indoor and outdoor use
  • 48-hour recoat and full cure time
  • Clean up with mineral spirits

The Details Specifications

Brand Flex Seal Family Of Products
UPC 850017897434
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 10 × 10 × 11
Weight 28 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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