

🛠️ Seal it, save it, and show it off—Flex Paste MAX has your repairs covered!
Flex Paste MAX is a professional-grade, 12 lb waterproof, paintable putty that seals gaps, cracks, and holes with a flexible, rubberized barrier. Designed for indoor and outdoor use, it works underwater, resists UV damage, and adheres to a wide range of surfaces including concrete, drywall, and EPDM. Packaged in an innovative stay-fresh container, it ensures long-lasting sealing power with zero waste—perfect for millennial pros who demand durability and style in every repair.












| ASIN | B084TDHKVJ |
| Best Sellers Rank | #433,019 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,111 in Hardware Sealers |
| Brand Name | Flex Paste |
| Color | White |
| Compatible Material | Wood, Glass, Tile, Concrete, Aluminum, Metal, Brick, Stucco, Masonry, Copper, Fabric, Fiberglass, Ceramic, Porcelain, Natural Stones, Roofing, Pvc, Eifs, Cspe, Epdm, Hypalon Polyurethanes |
| Customer Reviews | 4.0 4.0 out of 5 stars (120) |
| Included Components | Household Item |
| Item Dimensions | 7.75 x 6.75 x 6.75 inches |
| Item Form | Paste |
| Item Type Name | Flex Seal Paste MAX 12 lb Tub (White) FLEX SEAL - PFSMAXWHT01 |
| Item Weight | 12 Pounds |
| Manufacturer | Swift Response, LLC |
| Material Type | Rubber |
| Model | FLEX SEAL - PFSMAXWHT01 - WHITE |
| Number of Items | 1 |
| Part Number | PFSMAXWHT01 |
| Style Name | 12 lb WHT |
| Surface Recommendation | Tub |
| UPC | 850010226897 |
| Unit Count | 192.0 Ounce |
| Water Resistance Level | Waterproof |
D**Z
Great buy
When you are trying to repair your parents’ old house , and trying to keep costs down., this is one of the best things to use . It’s not goopy but easy to transfer, spread , and plugs the holes , tears, or whatever the damage that you found. We used some on one of our bathrooms too. Fantastic !!
P**R
Sealed basement cracks and lowered radon levels
I loved this product. I used it to seal the cracks in my basement and 6 weeks later my radon levels have been cut in half!
A**R
Shame! shame! shame!
Rating is "0". Product could not be used. It was as hard as a brick. We tried to make a hole toward the bottom to see if it was softer, it was as hard as the top. We tried to spread it on the roof, it would not work. We has to run to Walmart to get new cans to do the job.
A**R
top 1/3 of material was hard when delivered and unuseable
product should be sealed better lost 1/3 of product that was hard
J**T
Perfect for covering rv roofs
Perfect product
C**Y
Does the job
I didn't use it, (I donated) they needed it at my church and they told me it worked great.
R**T
Excellent product
It a very good product but somewhat messy to work with
T**R
It films over even if you follow the directions
Not able to use after opening. I had to clear the top1.5 inches off after letting it sit for a few hours. I followed the directions to the letter.
Trustpilot
3 weeks ago
2 weeks ago