







💪 Seal it, fix it, forget it — the ultimate leak-stopper for pros and makers alike!
Flex Seal Paste is a versatile, black waterproof putty designed to fill gaps, cracks, and holes on a wide range of surfaces including wood, concrete, drywall, and EPDM. Its UV and mildew resistant formula ensures durable indoor and outdoor protection, while its paintable finish makes it ideal for both professional repairs and creative DIY projects.












| ASIN | B084TDDCWW |
| Brand | Flex Paste |
| Brand Name | Flex Paste |
| Color | Black |
| Compatible Material | Wood |
| Customer Reviews | 3.8 out of 5 stars 479 Reviews |
| Included Components | Item |
| Item Dimensions | 12.7 x 10.8 x 10.8 centimeters |
| Item Form | Paste |
| Item Type Name | Flex Seal PFSBLKR32 Flex Paste 3 Lb Tub - Black |
| Item Weight | 3 Pounds |
| Item dimensions L x W x H | 12.7 x 10.8 x 10.8 centimeters |
| Item weight | 3 Pounds |
| Manufacturer | Flex Seal |
| Material | Plastic |
| Material Type | Plastic |
| Model | FLEX SEAL - PFSBLKR32 - BLACK |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | PFSBLKR32 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Windows,Doors,Tub |
| UPC | 850010226811 |
| Unit Count | 48 Grams |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
M**U
Best product
I would give 5 stars for the product but having it in a tin can, it’s hard to get it out before it starts to dry (about15 minutes).The spray can is easier to use. I have used it on a lead liner around the chimney on the roof, (as water started to come in when it rained), and having box gutters, i used the whole can in the holes and after it dried, finished it with a spray can just in case i missed anything.
M**N
We will see
Not as easy to apply as I would have liked but if my garage doesn’t flood inthe spring it’s worth it
S**.
Works great.
This product works great. Unfortunately, the pail I received had a good part off it already dried up and unusable. That was a bit disappointing as I was short material to get the job done.
R**T
Excellent produit
J'ai utilisé ce produit pour sceller une fissure de fondation.
C**K
Be careful!
A very thick paste. For this size can, use nothing wider than a 2.5" (6.5cm) FLEXIBLE putty knife; otherwise you'll have little maneuvering room in can. Be very careful not to get this on your skin; it is difficult to remove, short of using something like a scouring powder. On top of the paste in my just-opened can was a 1" wide circle of already hardened paste that further limited access to rest of contents until I pulled it out, getting paste all over my fingers. As you spread it, it tends to pull already-laid paste away. The price is rather high for the amount received and actually usable. Would suggest using the "calking gun" version rather than "spooning out" from the can, for better control, especially if filling cracks or caulking a seam between house and driveway, for example. With tropical rains due tomorrow, it will be interesting to see how this holds up.
Trustpilot
1 month ago
4 days ago