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About The XFasten Silicone Sealant
Key Features
Industrial-Grade
Offers maximum protection against water damage, leaks, drips, UV, extreme heat, and pressure from both indoors and outdoors.
Easy to Use and Manage
Simply pinch a hole on the adhesive cartridge, attach the jam-resistant nozzle, and you are good to go.
Optimal Thickness
Has the right thickness and flexibility so that it flows well and sits well on the surface - ensuring a weatherproof seal on surfaces.
Quick Setting and Curing
Sets and cures in 30 minutes and is ready to be exposed under the scorching heat or heavy rain.
DM
Reviewed in the United Kingdom on February 16, 2025
Purchased this product to do work on my son's car, very easy to use. Go's on well around body work seems good consistency/thickness. Great value for money and it goes along way. Would buy again and recommend to anyone.
Kindle Customer
Reviewed in the United Kingdom on February 13, 2025
OK
jim miller III
Reviewed in the United States on August 26, 2024
Needed some caulk for my tub and found this one along with a caulking gun. Super easy to use and clean up with great results afterwards
WE
Reviewed in the United States on July 23, 2024
I bought this sealant to help seal the slide-out of my travel trailer. I used a caulk gun to apply the sealant to the trailer once I had prepped all the surfaces. The sealant goes on very easily. Although it can be a little sticky at times. I used soapy water and some kitchen roll for cases where I applied too much or got it on my hands. In the first 5-10 min it will easily come off if you make any mistakes in applying it. I have had it on my trailer for a few months, and I am really impressed on how it stands up in the weather. Our trailer sits out in the full sunshine for most of the time, and the sealant holds up very well. The only "negative" is that the curing time is about 24 hours not 30 minutes if you apply it in large quantities or in a large area like I did.
David J. Glover
Reviewed in the United States on May 10, 2024
I should have just gone to the big box store and bought the standard cheaper brand. This brand had no additional benefits or qualities than the cheaper brands I have used before.
Ultra Technologies
Reviewed in the United States on November 4, 2024
Works Perfect
Robert
Reviewed in the United Kingdom on November 14, 2024
I’ve used it for sealing pipe and cable entry points on a vehicle. Using on painted metal and plastic it performed really well. Was touch dry in about 12 hours and by the following day had form a really strong but flexible rubber like gasket. The adhesion to the metal and plastic was really strong but still capable of flexing.I’ll be buying more of this.
Mary hine
Reviewed in the United Kingdom on October 24, 2024
Brilliant product
Ducky
Reviewed in the United States on October 16, 2024
This product worked great….easy to apply, looks like new again!!!
Suzanne Harden
Reviewed in the United States on October 14, 2024
It worked perfect….we had to use it on our camper
Phil
Reviewed in the United Kingdom on April 23, 2024
Poor value
The one
Reviewed in the United States on April 19, 2024
Lays super thick, and after it dries, you can feel how firm it is. It won't fill gaps and hold over old caulk, but this is really good quality caulking after trying other more expensive brands. Especially at the price range per tube, it is pretty good. I would definitely buy again. I seen several reviews of people saying it doesn't work good, but they probably can't find their way out of a box. This is good quality caulk.
Reviewed
Reviewed in the United States on September 14, 2023
This product does not cleanup easily so you have to be really on point when applying. Even with water, this stuff will not budge. It will become a mess that you have to paint over.
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