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💪 Seal smart, seal strong — the last caulk you'll ever need!
Flex Caulk Hybrid Polymer Waterproof Sealant is a clear, 6.6 oz (2-pack) advanced hybrid polymer formula designed for professional-grade waterproof sealing. It features an easy-to-use adjustable trigger flow nozzle requiring no caulk gun, adheres to virtually any surface wet or dry, and resists shrinking, cracking, UV, and chemicals. Fully paintable and equipped with a Snap & Save cap, it delivers durable, mess-free sealing for kitchens, bathrooms, windows, RVs, and more.
| ASIN | B0D2DWL9T2 |
| Best Sellers Rank | #140 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk |
| Brand | Flex Seal |
| Brand Name | Flex Seal |
| Color | Clear |
| Customer Reviews | 4.2 out of 5 stars 350 Reviews |
| Full Cure Time | 24 hours |
| Included Components | Flex Caulk, Clear, 6.6 oz, 2-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 | 13.2 fluid ounces |
| Manufacturer | Swift Response, LLC |
| Material Type | Polymer |
| Number of Items | 1 |
| Number of Packs | 2 |
| Part Number | CFSCLRR675-2PK |
| Surface Recommendation | Tile, Pipe, Counter Top, Window, Door, Sink, Tub, Walls, Gutter |
| Tensile Strength | 400 psi |
| UPC | 810129871104 |
| Unit Count | 13.2 Fluid Ounces |
| Water Resistance Level | Waterproof |
R**M
Sealant
Love these it seals really good
T**S
Well worth it!
Caulking isn't new to anyone, but for the homeowner or renter who occasionally needs a bit of caulk and wants it ready to use at a moment’s notice, this is the product to reach for. Unlike traditional tubes that require squeezing and can be messy or inconsistent, this applicator features a push-button mechanism with adjustable flow control—making precise application effortless and clean. The design is intuitive and ideal for small touch-ups or quick fixes around the house. While it may come at a slightly higher price point, the convenience, reliability, and ease of use make it a worthwhile investment for anyone who values having the right tool on hand when needed.
N**S
Great stuff
Very easy to use and was exactly what we needed!!
J**N
Worth the buy
Extreme durability
M**G
Still leaking…
I’ve used this twice and my bathtub is still leaking…. It was easy to install but I’m going to be removing and going back to old school bathroom tub and tile caulk.
M**J
Great Product
This product is a fantastic find! It's reasonably priced, making it accessible for most budgets without compromising on quality. The product is exactly as described, and its usefulness cannot be overstated. I've found it to be incredibly practical and efficient in meeting my needs. The attention to detail is impressive, and the performance is on par with more expensive alternatives. If you're looking for something reliable, well-made, and at a fair price point, this is the perfect choice. Highly recommended!
J**Y
Doesn’t seal for long, overpriced.
Writing this review after having this product applied for a few months. Does NOT hold up. Product had degraded and is no longer sealing. It is visibly compromised and has started degrading. This is NOT a superior product when used outdoors. I have seen cheap window caulk seal way better for way longer.
N**H
Great
So easy to use comes out clear and seals great . Had a hard time getting if off my fingers and hands but I did with out it sticking everything together. Will buy more.
Trustpilot
1 month ago
3 weeks ago