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💧 Seal smarter, not harder—flex your fix with Flex Caulk Hybrid!
Flex Caulk Hybrid Polymer Waterproof Sealant is a 6.6 oz clear, no-gun-needed sealant featuring an adjustable trigger flow nozzle for precise application. Its advanced hybrid polymer formula creates a durable, waterproof, and UV-resistant barrier that adheres to virtually any surface—wet or dry—without shrinking or cracking. Perfect for professional-grade sealing in kitchens, bathrooms, windows, and outdoor repairs, it’s fully paintable to match your style and built to last.
| Asin | B0D2FKV95Q |
| Best Sellers Rank | #128 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Adhesive Caulk |
| Brand Name | Flex Seal |
| Color | Clear |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,181) 4.4 out of 5 stars |
| Full Cure Time | 24 hours |
| Included Components | Flex Caulk, Clear, 6.6 oz, 1-Pack |
| Initial Hardening Time | 10 minutes minutes |
| 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 |
| Item Weight | 6.6 ounces |
| Liquid Volume | 6.6 fluid ounces |
| Manufacturer | Swift Response, LLC |
| Material Type | Hybrid Polymer |
| Model | CFSCLRR675 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Part Number | CFSCLRR675 |
| Surface Recommendation | Tile, Pipe, Counter Top, Window, Door, Sink, Tub, Walls, Gutter |
| Unit Count | 6.6 Fluid Ounces |
| Upc | 810129870787 |
| Water Resistance Level | Waterproof |
User
Great product
I had a water leak along my truck's windshield. I applied a small bead across my upper windshield, and there was no further water intrusion into the truck cab. It went on smoothly and almost odor-free.
User
5 stars
This sealant is the best one I’ve bought; I’ve tried several others, but water would eventually get through, and they’d end up peeling off—not this one! It’s easy to use, dries very quickly, and really works! I recommend it.
User
Perfect for small jobs
I didn't realize this existed. No caulk gun needed. I don't recall an odor when. using it. It can be closed and used another time! It has a twist nozzle that allows you to adjust the bead size. Perfect for smaller jobs. It provides a strong waterproof seal. Heavy storms have always forced water into a corner of my kitchen but not since using this. I've painted over it and you wouldn't know its there. Very durable and sets quickly.
User
Nice product
Nice product and price
User
Great buy. Annoying cleanup in tube
Works great. Helped a lot in my apartment. Only annoying thing is the caulk hardening in the tube and it takes quite a bit of effort to scrape it out. Especially since theres still some unhardened parts inside it that nake it even more annoying
User
Love this product
I love this product. I used it in the bathroom very easy to use clear and went on smoothly.
User
Didn’t stop even small gutter leaks
I bought this specifically to seal a few small leaks in my gutters, but unfortunately it did not work for me at all. I followed the application as carefully as I could and expected a waterproof seal, especially since the leaks were very small, but water was still coming through afterward. I even tried using it on tiny problem areas where I thought it should have been an easy fix, and it still didn’t solve the issue.For a product advertised as waterproof and weatherproof, I expected much better performance. It may work for other applications, but based on my experience with gutter repairs, it was not effective. I ended up having to look for another solution, so this was disappointing and a waste of time for the job I needed it for.
User
Great Product! Wear latex gloves and don’t get on your clothes!
This works so well. I’ve had a problem with water leakage in one spot between steps and sidewalk. I used many different products and nothing worked. The Flex Caulk got deep into the crack and the leak has stopped. It was the clear caulk!
User
Easy.
Easy to use. worked better than I expected.
User
Faulty expired
Don’t buy sent out faulty expired item
Trustpilot
2 weeks ago
1 week ago