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Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

4.3 4.3 out of 5 stars 6,236 ratings

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Black
14 Ounce (Pack of 1)
Material Plastic
Brand Flex Seal
Style Compact
Item Weight 14 Ounces
Item Dimensions LxWxH 9.5 x 2.5 x 2.5 inches

About this item

  • The easy way to coat, seal, protect, and stop leaks fast! Once dry, can be painted any color
  • Seeps into cracks and holes. Dries to a watertight, flexible, rubberized coating. Stays flexible and pliable; lasts many years
  • Transform and protect virtually everything! Ideal for arts & crafts, projects & hobbies
  • Protects surface from corrosion, can be used on wet or dry surfaces
  • Will not sag or drip in the Summer heat. Will not crack or peel in the Winter cold
See more product details

Additional Details

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Customer ratings by feature

Easy to use
4.0 4.0
Adhesion
3.7 3.7
Value for money
3.7 3.7
Water resistance
3.6 3.6

Product Description

Liquid Rubber in a Can
Group shot of all colors of Flex Seal Spray

Available in 11 Colors

Excellent for: Roof Leaks, Gutters, Skylights, Windowsills, PVC Pipes, Flashing, Ductwork, Foundations, Awnings, Chimneys, Downspouts, A/C Drip Pans, RV's & Campers, Trailers and so much more!

5 Tips for Success 1 and 2
5 Tips for Success Tip 3 4 and 5
Usage shots of Flex Seal Spray being used

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Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More


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Flex Seal, 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More
Flex Seal , 14 oz, Black, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More
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Price-36% $20.67
List:$32.46
$14.87$19.72$33.70$19.76
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to use
4.0
4.1
4.2
4.4
4.6
4.0
Adhesion
3.7
4.1
4.0
4.5
4.4
3.8
Water resistance
3.6
4.5
4.3
4.2
4.3
4.0
Value for money
3.7
3.8
3.8
3.5
3.4
Sheerness
2.7
4.0
4.0
Sold By
Amazon.com
BASKET
SportingDoc
BEYOND YOUR HOME
Jamlyn-Supply
material
Plastic
Rubber
Rubber
Rubber
Rubber
form
Spray
Liquid
Gel
Spray
Spray
Spray, Liquid
surface suggestion
Roof,Windows,Wood
Roof
Roof,Windows,Wood
Roof,Windows,Wood
Gutter
Roof,Windows,Wood
compatible material
Rubber
Paper, Metal
Rubber
Rubber
Rubber
Rubber
stain resistant
water resistance
waterproof
waterproof
waterproof
waterproof
waterproof
waterproof

Customer reviews

4.3 out of 5 stars
4.3 out of 5
6,236 global ratings

Customers say

Customers are happy with the performance of the product. They say it works well as a temporary fix and is very effective. However, some customers have reported issues with the seal, saying it didn't seal wide large cracks or holes. Opinions are mixed on leakage.

AI-generated from the text of customer reviews

283 customers mention210 positive73 negative

Customers like the performance of the product. They say it works well as a temporary fix, and it works great on basement cement for sealing up leaks. Some customers also say that it's a cool product that allows them to save money.

"...Overall though it is super easy to apply and works great!" Read more

"works great" Read more

"As described and fast delivery. Excellent product." Read more

"...However, one coat will not give the desired results. Much like paint, areas lacking appropriate coverage are more visible when dry...." Read more

130 customers mention59 positive71 negative

Customers are mixed about the leakage of the product. Some mention that it stops the leaks and works as intended, while others say that it leaks again.

"The back of my mailbox was leaking. Followed the instructions for applying the spray. About three days later it rained and the mail was 100% dry...." Read more

"...After that this is a simple spray on application and it seeps into the cracks to provide a great seal. One point of advice: use generously...." Read more

"...Overall, the adhesion score is due to the drips on the second coat and beyond, and the lack of integrity at anything other then ideal..." Read more

"...This is an incredible and easy product to use. Looks like it will work for ANY LEAK!..." Read more

50 customers mention10 positive40 negative

Customers are dissatisfied with the seal. They mention that it doesn't seal wide, large cracks, or holes. The seal also comes loose or loses adhesion, making the item no longer waterproof.

"...first use, even coats are difficult to achieve, which in turn effects sealing. There are pictures on the can of "recommended uses"...." Read more

"...Everything either comes loose, cracks, or just loses adhesion and comes off...." Read more

"...Yes the vents are rusted, and I did have a small leak before, but now look at it, you can see it, all around the whole vent - holes...." Read more

"...a simple spray on application and it seeps into the cracks to provide a great seal. One point of advice: use generously...." Read more

Ate My Roof
1 Star
Ate My Roof
If I could give Zero stars, I would have in some areas. I sprayed my roof vent and as you can see from the 1st picture it actually ate my roof, I mean it deteriorated, and now the small leak I had before, is big. If you could only see what it did to the roof tiles, man you would be surprised, they literally broke into pieces in my hands. I should have taken a picture before, but just for perspective, imagine no black. Yes the vents are rusted, and I did have a small leak before, but now look at it, you can see it, all around the whole vent - holes.In my personal experience, I would NOT recommend this product "Flex Seal" for your roof or parts of your roof. Now, I have to deal with a larger cost of repair.
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Top reviews from the United States

Reviewed in the United States on December 29, 2023
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
Reviewed in the United States on November 14, 2017
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
5 people found this helpful
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Reviewed in the United States on December 19, 2023
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
Reviewed in the United States on December 12, 2023
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
Reviewed in the United States on November 7, 2021
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
7 people found this helpful
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Reviewed in the United States on December 27, 2018
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
2 people found this helpful
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Reviewed in the United States on February 12, 2012
6 people found this helpful
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Reviewed in the United States on July 13, 2018
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
6 people found this helpful
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Top reviews from other countries

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Big Dave
5.0 out of 5 stars Works good
Reviewed in Canada on January 5, 2024
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
Cliente de Amazon
5.0 out of 5 stars Resistencia e impermeable en grietas .
Reviewed in Mexico on July 7, 2021
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
One person found this helpful
Report
Sebastião Ferreira Araújo
5.0 out of 5 stars Atende a expectativa.
Reviewed in Brazil on April 7, 2021
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
Danielle st-pierre
5.0 out of 5 stars Excellent
Reviewed in Canada on July 3, 2023
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
hernac
5.0 out of 5 stars maravilloso, funcional
Reviewed in Mexico on June 28, 2021
Color: BlackSize: 14 Ounce (Pack of 1)Verified Purchase
One person found this helpful
Report