Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Try it free

Glass WEB: BTS x Walmart + "Non Member" PIP Banner Wk 26 2026

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

I want delivery savings + more with

Try 30 days of free delivery + more! Choose your plan at checkout.

#2e2f32

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

FLEX SEAL LIQUID BLACK 16 US FL.OZ. LIQUID RUBBER SEALANT COATING

Works on: Concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fibreglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE, Hypalon polyurethanes and more. <ul><li>Forms a durable, breathable, weatherproof, non-slip barrier. Resistant to rain, snow, sun, wind, hail, air, moisture, UV degradation, extreme temperatures, and natural weathering</li><li>Blocks out air, water, and moisture. Prevents rust and corrosion</li><li>Mildew and chemical resistant. Non-hazardous and Non-flammable</li><li>Safe around plants and animals. When Flex Seal Liquid is in a fully cured and dried state</li></ul>

Industrial Sealant Type

Recommended Location

Brand

Colour

Volume Capacity

Assembled Product Weight

Size

Has Written Warranty

FLEX SEAL® LIQUID is a thick rubberized liquid that you can brush, roll, dip or pour. It starts as a thick liquid and dries to a strong, flexible, watertight, rubberized coating. It seals out air, water, and moisture and is mildew, chemical, and UV resistant. Non-hazardous, non-flammable, and safe around plants and animals. Available in black and white. It's perfect for concrete and asphalt repair, foundation repair and preventing basement seepage, weatherizing and sealing out moisture, home and roof repair, RV and motorhome weatherizing and repair, pools and pool equipment, outdoor ponds and birdbaths, and so much more! It works on concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, Hypalon polyurethanes, and more.

Material

Manufacturer Part Number

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

Walmart Item #

fulfillment

title_shipToHome_date_delivery

Actual Color

Black

Clear

Grey

WHITE

White

MAX - 2.5 Gal

4in (H)

Pint - 16 oz

Quart - 32 oz

Gallon - 128 oz

Leak Sealing

Ease Of Application

Crack Sealing

Odor

Product Quality

Fast Drying

Water Repellency

Coating

Value For Money

Repair Performance

Home Use

Coverage

For Projects

Roof Sealing

Instructions Clarity

Durability

Adhesive Strength

Can be strong, but also mild and non-intrusive.

Prone to water ingress at seams and seals.

Application requires minimal effort and is straightforward.

Made with high-quality materials and craftsmanship.

Very satisfied with the product. Used the product in bathroom and if done correctly with enough time to dry out, flex seal has done the job i expected. ⭐🥇👍

We got hit with Hurricane Ida in Northeast Queens NY.. We never get hit..This is the first time this section was drowned!!!  I truly feel for all those that were hit Katrina....so our basement was completely flooded...I decided to give Flex Seal a try last month...Yes...Last month...waiting for water to dry up and disinfect and clean...plus waiting for the Flex Seal to arrive...Well...Happy to report...very happy with the outcome...it has rained a lot here and thank goodness...not a drop has come through the walls or ground..My husband and dad covered the wall and ground with Flex Seal..last week..we put peel and stick tile...I'M SO GLAD I WATCHED ALL VIDEO'S AND TOLD MY HUSBAND AND DAD THAT WE ARE USING THIS!!  MY DAD HAS USED THIS PRODUCT BEFORE.

FLEX SEAL SAVES THE DAY

flexsealproducts.com

I used Flex Seal liquid rubber on a hairline crack on outer basement wall, application went on easy, used two coats...I feel very confident this will solve my problem. I researched many different products and I believe this is the Best product for my problem...Lord willing I'll have no more leaks!

Liquid Rubber is the BEST!

We had some water coming in our basement through a concrete wall.  We painted the entire wall with flex seal and it sealed  the deal.  It really works and is easy to use.  We have used this product before and it does the job...it works exactly like they say...you will not be disappointed.

Great Stuff!

Excellent product !! I used it to repair a pair of tactical shoes that were coming apart [ very expensive shoes ] . Worked great , these shoes will probably now last my lifetime . If they need more repair i'll use Flexseal again . I'm already thinking of other ways to use Flexseal  , my mind is racing . On my short list of must have products .

Great product  , 10000's of uses .

I haven’t used this purchase yet. I ordered the smaller size hoping the Flex Seal inside won’t dry/harden as it did in the 32oz size. I was a bit disappointed that I lost about a third of the can. Would you ever consider making your product in 8oz sizes and sell them in 4 packs? I would use/purchase something like that.

16oz vs 32oz Flex Seal

The clear coat went on easily and sealed up the seams in my basement cinderblock wall, keeping out rainwater. The Flex Seal couldn't be cleaned from my brush, so I switched to cheap throw-away brushes. During painting and curing, Flex Seal had a very strong odor which permeated the entire house and took 2 days to disperse, even with open windows in the work area and vent fans going full blast. The dried coat is glossy, which makes the painted area reflective and look wet; a flat finish would be much better and non-glare. The Flex Seal liquid did not require mixing, just open the can and apply.

Looks Like it Will do the Job

it was to liqui i put it up. but its on a virticle surfice so its sagging, cold outside so not drying, but this pring ill tear it all out and fix what is damaged... the flex tape, just failed. its not sticky, in wet surface like you advertise, it dont work. i am very dissapointed. i will still buy things but vary little now.

very dissappointed,

It didn't stop our patio from leaking into the garage. :(
We added another coat and it still didn't stop, but slowed it.
I expected it to act like it does in the commercials.  It didn't.
We couldn't find the 2.5 in grey anywhere.  But we did find 4 gallons.
But it didn't cover as much as the can said.  So, where it had some
good  it had more bad.  I'm was very disappointed to spend the money on
it and it didn't stop the leak.

It's didn't stop the leak.

We used the Flex Seal paint on the inside hull of an aluminum boat, surface was sanded and prepped for paint, the Flex Seal product peels off if something rubs against it.  Also dirt sticks to the surface and looks dirty all the time.  Very disappointed in the results and will use a different product next time.  Last boat we used was Herculiner and results were much better.

Not a good choice for inside aluminum boat hills.

FLEX SEAL LIQUID BLACK 16 US FL.OZ. LIQUID RUBBER SEALANT COATING in a metal can with a red and yellow label featuring bold black text and a blue water droplet graphic, including bilingual caution about eye irritation. This flexible, weatherproof sealant forms a durable moisture barrier ideal for sealing leaks and protecting various surfaces.

FLEX SEAL LIQUID BLACK 16 US FL.OZ. LIQUID RUBBER SEALANT COATING

Shop Confidently

How you’ll get this item:

Your data, your choice