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🛠️ Seal it once, seal it right — the last adhesive you’ll ever need!
CT1 Unique Sealant is a premium multi-purpose silicone mastic and adhesive delivering 300 PSI tensile strength and 100% waterproof sealing. Compatible with glass, metal, plastic, and wood, its high-viscosity formula ensures no sagging during application. Supplied as a convenient 2-pack of 290ml tubes in white, it’s engineered for professional-grade construction and DIY projects requiring durable, versatile bonding and sealing.
| ASIN | B01N3AWW70 |
| Best Sellers Rank | 27,667 in DIY & Tools ( See Top 100 in DIY & Tools ) 488 in Sealers |
| Brand | CT1 |
| Colour | White |
| Compatible Material | Glass, Metal, Plastic, Wood |
| Container Type | Tube or bottle |
| Customer Reviews | 4.6 out of 5 stars 340 Reviews |
| Included Components | 2 x CT1WHITE |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Volume | 290 Millilitres |
| Item Weight | 620 Grams |
| Item form | Paste |
| Manufacturer | CT1 |
| Manufacturer Part Number | 0428518 |
| Material | Silicone |
| Model Number | CT1WHITEX2 |
| Number of Packs | 2 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Extra Strong |
| Product Warranty | None. |
| Special feature | Extra Strong |
| Specific Uses For Product | Multi-purpose |
| Specific uses for product | Multi-purpose |
| Tensile Strength | 300 Pounds Per Square Inch |
| UPC | 772040428518 |
| Unit Count | 580.0 millilitre |
| Viscosity Level | High |
| Water Resistance Level | Waterproof |
J**N
Fantastic - flexible, waterproof and very strong
CT1 is possibly the best flexible adhesive you can buy. It has fast grab and can act as filler, sealant and adhesive. It can be hard to squeeze out with a skeleton gun, but if you put the tube on a radiator for half an hour it’s much easier. Even though it’s a flexible adhesive, if you stick timber with it, certainly with softwood, you’ll pull a thin layer of wood off before you get the adhesive off. You can use this instead of silicone and apparently it doesn’t yellow. It’s *very* sticky to apply so if you get it where you don’t want it, it will be extremely hard to remove. If you try to use it like silicone, you’ll struggle to get a very fine feathered edge. You can’t use the wet finger trick with this stuff, and it seems to stick to absolutely everything. Cleaning it up can be very tricky (use lots of kitchen roll and throw it away) so be very careful when you apply it. It’s easy to seal the nozzle for future re-use - far easier than Sikaflex EBT for example. Once sealed, you can use this pretty easily after a few months. The biggest risk with people using this is not being able to remove stuff once it has been glued. This is not adhesive you can use for temporary fixing. It’s expensive, but once something is glued - it stays fixed.
C**Y
Excellent product for indoor/outdoor applications
An excellent product suitable for use in wet conditions. We used it to secure plastic discs on the non slip surface of our bath in order to be able to safely fit and remove a bath lift, as required. The discs have stayed in situ and have made it possible for the bath lift to perform safely and for it to be easily fitted and removed at will or when other more able bodied family members wish to use the bath. The adhesive we purchased, in white originally, a few years ago has remained white after constant use in the bath. It has also remained firmly adhered to the discs and bath. Since that first use we have continued to purchase it in other colours for indoor and outdoor applications.
C**H
This stuff sticks to anything, will even work underwater
I had a problem with a leaking spigot at the back of a toilet and tried all the usual silicone stuff, even the expensive stuff did not cure it, despite me carefully cleaning and degreasing the area. You learn that basically silicone does not really adhere to any glazed surface like tiles or porcelain toilets etc. Although this CT-1 is pretty expensive I was desperate, and I have to say that I have been impressed, since I used it first ( about 6 years ago ) there has not been a drop of water from the spigot... Since I discovered CT-1 I have used it for many things inside and outside the house and never been disappointed - I got this batch to seal around the PVC fascia that I fitted to cover the wooden fascia on our house because I got fed up of painting the wood. .
P**L
Alright
Decent, but I gave it away to a mate anyway.
T**S
Great stuff
I bought this to try out as I'd heard it will literally stick anything to anything and thats true it does even outside. Ive used it for many things outside when it can't be screwed or nailed in and its amazing stuff. Cannot recommend enough. In a pinch when you can't wait for delivery you can pick it up at trade point in b&q too
R**R
Expensive but superb
Expensive.but the quality takes over if you don't mind mebthe price this is superb
F**Y
CT 1 a must have in your toolbox
A fantastic product that is perfect for numerous jobs. Even sealed accidental cut in freezer box.
T**E
Great sealant.
Great sealant. Unfortunately, delivered as one white and one clear. Still, can use the clear on another job.
N**I
Ottimo
Prodotto conforme alla descrizione
C**N
Bueno, pero muy caro
Excelente producto y también excesivamente caro
Trustpilot
1 month ago
1 month ago