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Gorilla Black Rubber-Based Liquid Rubber Waterproof Sealer 32 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A brushable liquid rubber coating that seals out water and holds up to UV rays, indoors or out.
Gorilla MPN 105338 In Stock & Ready to Ship
$209.94
$34.99 each · sold by the case of 6 Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 6 · Order in multiples of 6
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

Sold by the Case

$209.94 per case of 6

Save $31.50 on orders $75+. Spend $75 or more to unlock 15% off every case — applied automatically at checkout. Free shipping at $149.

Ships as a complete case of 6. Free shipping on orders $149 and up.

About Product Overview

Gorilla's Waterproof Sealer is a liquid rubber coating built for roofs, foundations, and driveways that need to shed water and stand up to sun exposure. The black, rubber-based formula goes on with a brush or roller and cures into a flexible, UV-resistant barrier for use indoors or out. At 32 ounces, it's sized for smaller repair jobs and touch-ups rather than whole-roof coverage.

  • Liquid rubber coating, black
  • UV resistant for outdoor durability
  • Brush or roller application
  • Recoat in 24 hours, full cure in 48 hours
  • Rated for indoor and outdoor use
  • Made in USA

The Details Specifications

Brand Gorilla
Model / MPN 105338
UPC 052427010230
Weight 16 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 Gorilla. 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 · Gorilla

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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