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Black Jack Leak Stopper Rubber Flexx, 15 oz Waterproof Flexible Industrial Sealant, Black, 1 Piece

Name: Black Jack Leak Stopper Rubber Flexx, 15 oz Waterproof Flexible Industrial Sealant, Black, 1 Piece
Brand: Black Jack
SKU: 39086835
Price: 12.97 USD
Availability: InStock
Rating: 4 (146 reviews)

4 stars out of 146 reviews

(4.0)|

146 ratings

Black Jack Leak Stopper Rubber Flexx, 15 oz Waterproof Flexible Industrial Sealant, Black, 1 Piece Leak Stopper Rubber Flexx 15oz Waterproof Repair Sealant Spray Black 1 Pack 3 pack Leak Stopper Rubber Flexx 15oz Waterproof Repair Sealant Spray Black 1 Pack

Pack Size:Single

Key item features

Versatile Repair Solution: This flexible sealant is designed for quick and effective repairs on various surfaces, including gutters, pipes, roofs, skylights, flashings, and windows.
Durable Rubberized Finish: The rubberized coating remains pliable, expanding and contracting with surface movements to withstand temperature changes and prevent brittleness.
Crack-Resistant Formula: Specially formulated to resist cracking, peeling, and aging, ensuring long-lasting protection and reducing the need for repeat applications.
Quick Drying: Dries to the touch in just 10 minutes and fully cures within 6 hours, allowing for faster project completion and minimal downtime.
Professional Appearance: Available in a clean black color, the sealant blends well with dark roofing, piping, or flashing components for a seamless finish.
Waterproof Seal: Creates a waterproof seal that withstands a range of temperatures, making it ideal for emergency fixes and preventative maintenance.

Generated by AI

Specs

Adhesive form
Spray
Color
Black
Dry time
10 min
Features
Durable, Easy Installation
Industrial sealant type
Flexible
Volume capacity
18 fl oz

Reviews summary

Pros

: Offers good value at this cost.

Cons

: Does not dispense in a smooth, consistent pattern.
: May not completely seal small leaks, requiring reapplication.

Generated by AI

Current price is Now $12.97

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was $14.99

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About this item

Product details

This versatile 15 oz Rubber Flexx Waterproof Repair & Sealant Spray is a must-have for quick and easy repairs across a variety of surfaces. The flexible, durable formula creates a waterproof seal that withstands a range of temperatures, resisting cracking and peeling. Whether you need to fix leaks in gutters, pipes, windows, roofs, or other areas, this convenient spray can be applied directly to the problem spot for a long-lasting solution. The rubberized coating provides a seamless, professional-looking finish to blend with your existing surfaces and dries in 10 minutes, curing in 6 hours.

Versatile and Reliable Repair Solution: This flexible sealant is engineered for fast, effective repairs across a wide range of surfaces. Whether you're sealing leaks in gutters, patching cracks in pipes, or repairing roofs, skylights, flashings, and windows, this multi-surface formula ensures durable adhesion and dependable results—making it an essential for both emergency fixes and preventative maintenance.
Durable, Rubberized Finish for All Climates: The rubberized coating remains pliable after application, allowing it to expand and contract with surface movements. This flexibility is ideal for withstanding temperature changes, preventing the seal from becoming brittle or detaching in extreme weather conditions.
Crack- and Peel-Resistant Formula: Specially formulated to resist cracking, peeling, and other signs of aging, this sealant maintains its performance over time—reducing the need for repeat applications and ensuring long-lasting protection.
Quick Drying & Fast Curing: Designed with convenience in mind, the product dries to the touch in just 10 minutes and fully cures within 6 hours. This allows for faster project completion and less downtime, especially when time is critical.
Available in a clean black color, the sealant offers a professional appearance that blends well with many materials, especially dark roofing, piping, or flashing components.

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Adhesive form

Spray

Color

Black

Dry time

10 min

Features

Durable, Easy Installation

Warranty

Warranty information

Varies by manufacturer

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Warning Text

proposition 65 reasons:Cancer - www.P65Warnings.ca.gov

WARNING: WARNING: This product contains chemicals known to the State of California to cause cancer andbirth defects or other reproductive harm.

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Customer ratings & reviews

4 out of 5 stars

stars146 ratings53 reviews

How item rating is calculated

Reviews summary

Pros

: Offers good value at this cost.

Cons

: Does not dispense in a smooth, consistent pattern.
: May not completely seal small leaks, requiring reapplication.

Generated by AI

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

Sort by |

Showing 1-3 of 53 reviews

Aug 25, 2025

anonymous

Item details

Multipack quantity: 1

Sold and shipped byProSolutionsDirect

5 out of 5 stars review

Verified Purchase

Good Product

Shake and spray, wait and if needed reapply, basically follow the directions, good for average leak.

Helpful?

Oct 7, 2025

WalmartCustomer

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

It was exactly what I needed and exactly how it was described on the website

Incentivized Review

Helpful?

Dec 30, 2025

WalmartCustomer

Item details

Multipack quantity: 1

5 out of 5 stars review

Verified Purchase

It was cheaper than brand name and worked as advertised

Incentivized Review

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