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Flex Seal Family of Products Flex Paste MAX White Rubber Coating 12 lb

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A thick rubberized paste that clings to vertical surfaces and gaps for real repairs, no primer needed, cured tough against UV.
Flex Seal Family Of Products MPN PFSMAXWHT01 In Stock & Ready to Ship
$119.99
Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

About Product Overview

Flex Paste MAX is a thick, rubberized coating built for jobs that need more than a thin sealant skim coat. It goes on like a heavy-bodied paste, so it stays put on vertical surfaces, gaps, and uneven patches instead of running off before it sets.

Use it to seal and patch roofs, gutters, pipes, tanks, and other trouble spots exposed to weather. No primer is needed before application, and once cured it resists UV rays, so outdoor repairs hold up under sun exposure rather than breaking down over a season.

Full cure takes 48 hours, with recoating possible after 24, and cleanup is handled with mineral spirits. Made in the USA, this 12-pound can covers roughly 20 square feet, giving you enough material for a real repair job rather than a quick spot fix.

  • Container size: 12 lb can
  • Coverage area: approximately 20 sq ft
  • Color: white
  • No primer required
  • UV resistant for indoor and outdoor use
  • Recoat in 24 hours, full cure in 48 hours

The Details Specifications

Brand Flex Seal Family Of Products
Model / MPN PFSMAXWHT01
UPC 850017897489
Weight 13 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Flex Seal Family Of Products. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Flex Seal Family Of Products

Or skip the tabs entirely and buy it down the street. Find a store near you →

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

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.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
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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