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Flex Seal Family of Products Flex Glue MAX Extra Strength Rubber White Adhesive 28 fl. oz.

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A non-sag paste that grips vertical and overhead spots without dripping, built for super-strength bonds indoors or out.
Sold Locally Only

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

In-Store Exclusive

This one's worth the trip to the store.

This Flex Seal Family Of Products item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

This 28 oz cartridge refill is made for Flex Glue Max applicators, giving you a non-sag paste adhesive that holds its position on vertical and overhead surfaces instead of running. It's rated super strength and bonds to most surfaces, indoors or out, with UV resistance for repairs that stay outside.

With a 10-minute working time and 24-hour full cure, it's suited for jobs that need a strong initial hold before you can move on. It handles application temperatures from 0 to 150 degrees Fahrenheit, so it's usable across a range of job-site conditions.

  • Container size: 28 oz cartridge
  • Form: Non-sag paste
  • Adhesion strength: Super strength
  • UV resistant, indoor and outdoor use
  • Working time: 10 minutes; full cure: 24 hours
  • Application temperature range: 0 to 150°F

The Details Specifications

Brand Flex Seal Family Of Products
Model / MPN GFSMAXWHT28
UPC 850017897465
Weight 4 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
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Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

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