Skip to content
Free Local Pickup ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
Leak Stopper Rubber Flexx Gloss Black Rubber Polymers Leakseal Flexible Rubber Sealant 18 oz

Leak Stopper Rubber Flexx Gloss Black Rubber Polymers Leakseal Flexible Rubber Sealant 18 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Seal leaks effortlessly with Leak Stopper Rubber Flexx Gloss Black Rubber Polymers Leakseal Flexible Rubber Sealant 18 oz for durable, waterproof protection.
Leak Stopper MPN 0316-GA-6 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $11.99. Our online price is $12.99.
$12.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 6 · Order in multiples of 6

Sold by the Case · Save 15%

Take $11.70 off your case at checkout

Case of 6 · List Price $77.94
15% OFF with code at checkout $66.24
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 6. Apply casediscount at checkout to take 15% off your order.

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.

About Product Overview

Introducing the Leak Stopper Rubber Flexx Gloss Black Rubber Polymers Leakseal Flexible Rubber Sealant 18 oz—your ultimate solution for sealing and protecting surfaces from leaks and moisture. Designed for versatility and durability, this innovative sealant provides a robust barrier against the elements.

Key features of the Leak Stopper Rubber Flexx include:

  • Exceptional Flexibility: The unique rubber polymer formulation allows for expansion and contraction, making it ideal for various surfaces.
  • Gloss Black Finish: Not only does it seal effectively, but it also delivers a sleek, professional look to your projects.
  • Easy Application: Packaged in a convenient aerosol can, it allows for precise application without the mess.
  • 18 oz Coverage: With enough product to cover an area of 6.2 square feet, it’s perfect for both small repairs and larger projects.

This Leak Stopper Rubber Flexx Gloss Black Rubber Polymers Leakseal Flexible Rubber Sealant 18 oz is not just a sealant; it’s a reliable partner for home improvement and repair tasks. Whether you are addressing leaks in roofs, gutters, or even automotive applications, this sealant ensures a long-lasting, waterproof seal.

Don’t wait until leaks become a costly problem. Equip yourself with the Leak Stopper Rubber Flexx and enjoy peace of mind knowing your surfaces are protected. Order yours today and experience the difference!

The Details Specifications

Special Handling Special handling and shipping requirements apply.
Brand Leak Stopper
SKU 1000980
UPC 025056031600
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 6
Unit of Measure 0 0
Dimensions (L × W × H) 9 × 6 × 10
Weight 9 lbs
Cubic Feet 0.05106 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare