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💧 Seal smart, live leak-free—because your space deserves the best!
Flex Caulk Hybrid Polymer Waterproof Sealant is a 4 oz, white, advanced hybrid polymer formula that delivers professional-grade waterproof sealing without the hassle of a caulk gun. Featuring an adjustable trigger flow nozzle, it adheres to wet or dry surfaces, resists UV and chemicals, and maintains flexibility without shrinking or cracking. Ideal for a wide range of applications from bathrooms to outdoor repairs, it’s fully paintable and designed for durability and ease of use.
| ASIN | B0DK9YCYYW |
| Best Sellers Rank | #187 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk |
| Brand | Flex Seal |
| Brand Name | Flex Seal |
| Color | White |
| Customer Reviews | 4.0 out of 5 stars 134 Reviews |
| Included Components | Flex Caulk, White, 4 oz, 1-Pack |
| Item Form | Liquid |
| Item Highlight | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV |
| Liquid Volume | 4 fluid ounces |
| Manufacturer | Swift Response, LLC |
| Material Type | Synthetic Polymer |
| Model | CFSWHTR100 |
| Number of Items | 1 |
| Part Number | CFSWHTR100 |
| Surface Recommendation | Tile |
| Tensile Strength | 200 psi |
| UPC | 810129870749 |
| Unit Count | 4 Fluid Ounces |
| Water Resistance Level | Waterproof |
H**R
The Best
This is the best thing ever, used it to fix several cracks in my underground pool steps. Is there was alot of water in the pool and this stuff did what it says. It sealed perfectly, after applying we waited about an hour then put a little more since the steps were submerged in water. It has been 3 weeks and it's still good. I would highly recommend this for any sealing job with water
R**.
Expensive but i love this stuff and the little can is very easy to work with
If you know about flex seal than you just get it. This stuff is great
C**S
Do not buy, wouldn't work, nothing came out
Do not buy, wouldn't work, nothing came out. Looks like this is a common issue as all the 1 star reviews say same thing. Pulled the tab, moved to open position, the trigger extended like it should, pushed and the the whole top just wanted to come off, nothing was coming out. Tried several times. Past return window so I am stuck with defective product. Buy normal caulk not this. Thought it was worth the extra money for a simpler to use product, it is not.
P**Z
Easy to use
Easier to use than most caulks but still caulking itself is such a task for the inexperienced. Used this to do interior of new installed windows and it worked well, about two normal sized windows per can.
S**O
Makes a tight seal
Finally found soething to seal the base of the shower tile, where it meets the shower pan. A little messy, not nearly as bad as silicon. Did the job, no more leaking onto the floor. It is compatible with a damp surface.
R**H
Very disappointed
WARNING DO NOT BUY!!!! Could not get this to work. After 30 minutes still couldn't get any product to come out. Also you can't return for a refund.
K**.
Was so easy to use and store
Was easy to use, came out at a good speed and didn't hurt my hand, I would definitely use this again for our tub caulking!
J**I
Works Well
Very easy to use nozzle. Seal was ok, I think my need was a bit unconventional, so it did not seal the way I wanted it to. I was trying to stop a pipe leak. However, as caulk, it works really well.
Trustpilot
2 months ago
1 month ago