Internet # 314377365

Model # PFSWHTR16

Store SKU # 1005710154

FLEX SEAL FAMILY OF PRODUCTS

Flex Paste 16 fl. oz. White Interior/Exterior Multipurpose Sealant

Name: FLEX SEAL FAMILY OF PRODUCTS Flex Paste 16 fl. oz. White Interior/Exterior Multipurpose Sealant PFSWHTR16
Brand: FLEX SEAL FAMILY OF PRODUCTS
SKU: 1005710154
Price: 14.72 USD
Rating: 3.8 (1381 reviews)

$1472

Thick rubberized paste that clings to virtually any surface
Instantly fills large gaps, cracks and holes
Flex paste is UV and mildew resistant, will even cure underwater

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Product Details

About This Product

Flex paste is a super thick rubberized paste you can use to spread, shape, form and seal virtually everything. Flex paste starts out as a thick paste and dries to a strong, flexible, rubber coating. It can be applied to all types of surfaces to seal out air, water and moisture. It clings to the surface and instantly fills large gaps, cracks and holes. It won't shrink or wash away and can be painted any color. Flex paste can be applied on dry or wet surfaces, even underwater. Flex paste clings to a wide variety of surfaces and will work on wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, ﬁberglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes and so much more.

Highlights

Seals out air, water, and moisture
Shape to take any form so you can fill large gaps and holes
Apply on wet or dry surfaces
Clings to multiple surfaces and hard-to-reach areas
Flex paste is perfect for DIY, handyman projects, arts and crafts, hobbies, repairs and so much more
Once completely dry, flex paste can be painted any color
Non flammable and UV, chemical, and mildew resistant
You can use flex paste on a wide variety of surfaces such as wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, ﬁberglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes and so much more
Depending on temperature, humidity or the thickness of the layer, flex paste can be tooled within 15-30 minutes of the initial application it will dry to the touch in approximately 2-hours and fully cure in 24 to 48-hours
Flex paste gets stronger over time
Flex paste can be applied in a wide range of temperatures from 0°F - 150°F once applied and fully cured it can withstand a wider range of temperatures from 40°F - 200°F
With proper application, care and maintenance, flex paste will last for years
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Product Information

Internet # 314377365

Model # PFSWHTR16

Store SKU # 1005710154

Additional Resources

Shop All FLEX SEAL FAMILY OF PRODUCTS

From the Manufacturer

Specifications

Individual size (oz.): 16 oz

Dimensions

Individual size (oz.)	16 oz

Details

Caulk and Sealant Application	Multipurpose	Caulk and Sealant Type	Polymer
Color/Finish	White	Coverage (linear ft.)	10
Cure Time (hours)	24	Dry Color Family	White
Dry to Touch (min.)	30 min	Features	Moisture Resistant, Mold and Mildew Resistant, Paintable
Indoor/Outdoor	Indoor/Outdoor	Interior/Exterior	Exterior, Interior
Kit	No	Number of Tubes Included	1
Returnable	90-Day	Sealant Form	Standard Tube
Transparency	Solid

Warranty / Certifications

Certifications and Listings	No Certifications or Listings	Manufacturer Warranty	100% Money Back Guarantee

Questions & Answers

What surface area will 16 oz cover? It mentions 10 linear feet but how wide is that 1 in maybe 3 in?

ByMay 19, 2025

1 Answer |

Answer This Question

Hey there! One pound (16 fl. oz.) of Flex Paste covers approximately 20 ft² with a layer thickness of 1/16th inch. However, Flex Seal Liquid may be a better fit for square feet coverage https://flexsealproducts.com/blogs/how-to/how-to-use-flex-seal-liquid. When you get a chance, send us an email at humans@flexsealproducts.com with more information. We're here to help!

By|May 20, 2025

0/0

Will this seal a hole in water pipe

ByMay 15, 2025

1 Answer |

Answer This Question

Hi Jalin! As long as the pipe is not pressurized, customers have seen successful pipe leak repairs. If you need further project assistance or have any other questions, send us an email at humans@flexsealproducts.com with more information. We're always here to help!

By|May 20, 2025

0/0

Can you clean this up with water

ByApr 21, 2025

1 Answer |

Answer This Question

Hi David! Do not use water to clean Flex Paste. Before it cures, Flex Paste can be cleaned with a dry cloth. If necessary, most residues can be removed with alcohol, acetone, or mineral spirits. Tools may also be cleaned the same way as needed. When using solvents, be sure to read and follow instructions. If you have any other questions or concerns, send us an email at humans@flexsealproducts.com. We're always here to help!

By|May 2, 2025

0/0

Does this work for water fountains

ByMar 21, 2025

1 Answer |

Answer This Question

Hey there Kathy! Please note, we do not recommend using our products for any application that comes in contact with potable (drinking) water. If this does not apply to your project, please send us more information at humans@flexsealproducts.com. We're here to help!

By|Mar 26, 2025

0/0

Will caulk adhere to it?

ByMar 9, 2025

1 Answer |

Answer This Question

Hey there, Glee. Our products are designed and marketed as standalone products, meaning you usually will not need multiple products to accomplish a project. Depending on yours, we may be able to solve your issue with a different Flex Seal Product. When you get a chance, send us an email at humans@flexsealproducts.com with more information. We're here to help!

By|Mar 11, 2025

0/0

Can this product be used to seal a crack in a water fountain? What kind of paint can be used to paint over it?

ByFeb 19, 2025

1 Answer |

Answer This Question

Hey there! Many customers have seen success using Flex Paste to repair cracks. It's also a great choice as you can paint over the cured product, leading to a seamless repair. We usually recommend using a high-quality latex paint after allowing the product to fully cure for 24 - 48 hours. If you have any other questions or need project assistance, send us an email at humans@flexsealproducts.com with more information. We're here to help!

By|Mar 7, 2025

0/0

Will the flex paste adhere to a wall painted with flat paint?

ByDec 2, 2024

1 Answer |

Answer This Question

Hi Bella! Flex Paste should have no issues adhering to this surface. To ensure you properly apply Flex Paste, follow this useful guide: https://flexsealproducts.com/blogs/how-to/flex-ed-learn-all-about-flex-paste. As always, we're just a message away for any assistance you may need. Just send us an email at humans@flexsealproducts.com with more information.

By|Dec 4, 2024

0/0

Can this paste be use on a cast iron,I think, drain pipe?

ByNov 30, 2024

1 Answer |

Answer This Question

Hi Rita! Many customers have seen success with similar applications. Here's a useful resource for properly applying Flex Paste:https://flexsealproducts.com/blogs/how-to/flex-ed-learn-all-about-flex-paste. As always, we're just a message away for any assistance you may need. Just send us an email at humans@flexsealproducts.com with more information.

By|Dec 4, 2024

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Viewing 1-8 of 229

Customer Reviews

3.8 out of 5

3.8 out of 1,381 reviews
79% recommend this product

726

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What Customers Say

Summarized by generative AI from text of customer reviews

Customers say that Flex Seal Flex Paste is a versatile and effective sealing solution for various household repairs, particularly for leaks and cracks. Many users appreciate its strong adhesion and waterproof properties, noting its ease of application. However, a common concern is that a significant portion of the product often hardens in the container, leading to waste. Overall, while the product performs well when fresh, customers recommend using it all at once to avoid issues with drying out.

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Showing 1-10 of 1,381 reviews

Feb 14, 2025

Terrible

We used this Flex Paste made by FLEX SEAL in our shower. It did not even last a month and it was 100% applied correctly. It dried and was pealing away from the wall and water was leaking behind the shower. It was a complete waste of money and A LOT of time.

Hi. We're sorry to hear your application did not meet your project needs. We assure you, this is not the experience we want for our customers. When you get a chance, send us an email at humans@flexsealproducts.com mentioning this review. We're here to help.

1 found this review helpful

Jan 21, 2025

Dry on delivery

I purchased this as an in-store pickup item. Upon opening the container, all of the product was completely dry—not just the top layer. I stuck a screwdriver from top to bottom, and it came out clean. This product might be great. I'll never know. This was very frustrating as I had counted on this product to solve an immediate problem.

Hi there. Your feedback is much appreciated, as it is our greatest resource. We're sorry to hear you received cured product and completely understand how frustrating it may be. Rest assured, this is not the experience we want for our customers. When you get a chance, send us an email at humans@flexsealproducts.com mentioning this review. We look forward to hearing from you.

Recommended

2 found this review helpful

Dec 8, 2024

It works

[This review was collected as part of a promotion.] Since it’s a paste, it’s a little thick. But it works! We had a leaky pipe under the sink, we put the paste on one layer and an hour later, no more leaks. Received this product for free.

Customer review from influenster.com

Sep 17, 2024

Sticky mess

Trying to use this gunk around bilco door and foundation. Not great in tight spot. Very hard to spreed as it sticks to everything, every tool and gloved hands. I have a bunch of clumps of paste in corners were the door unit meets foundation and patio surrounding the unit. Awful. PS. Use this all in one day because no matter what you do it’s a hard sticky ball the next day. GARBAGE

Hi Anthony. We're sorry to hear your application did not meet your project needs. We assure you, this is not the experience we want for our customers. When you get a chance, send us an email at humans@flexsealproducts.com mentioning this review. We're here to help.

3 found this review helpful

Jul 24, 2024

Fill in

[This review was collected as part of a promotion.] We used this to seal around our tub works well and is very durable. It was easy to use and a small amount goes a long way. I would recommend this product to others

Customer review from influenster.com

Jul 2, 2024

Easy!

[This review was collected as part of a promotion.] I’ve seen this product so many times but never used it until now. We had a leaky and constantly moving spot from the outside wall around a spigot and I applied this around the faucet and in the space between the wall. It worked wonderfully! It sealed the space up and the faucet no longer moves and was super easy to do. Next up….craft projects!

Customer review from influenster.com

Jun 17, 2024

Once open it was no good.

[This review was collected as part of a promotion.] I used this only once to repair a plastic container that had a crack and it worked great but, lid was on tight had to use a screwdriver stored in my house temperature normal opened to use again it hard I mean hard it was stored in a cool place inside, lid was tight but it still was hard i was really wanting use it again it did a great job I barely even used any of it

Customer review from influenster.com

Jun 17, 2024

Easy application and simple to paint

[This review was collected as part of a promotion.] Great value product, I have used it in the past on multiple applications and it does a great job sealing out water and it is very easy to use. Just make sure you wash your hands and follow the directions. It was also easy to paint once you allowed it to dry.

Customer review from influenster.com

Jun 17, 2024

Didn't work

[This review was collected as part of a promotion.] I was excited to try this. We have a hose with a little hole in it and decided to try it. It didn't work. We put several layers and let dry with no luck.

Customer review from influenster.com

Jun 16, 2024

Great Product

[This review was collected as part of a promotion.] Flex Seal is a great product. The quality of the adhesion stands out. I applied in my shower and it provided awesome coverage. It wasn’t too messy and I could use for several areas in my home.

Customer review from influenster.com