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🔧 Seal it once, seal it right — the last adhesive you’ll ever need!
CT1CLEAR is a premium 290ml multi-purpose sealant and adhesive featuring patented TRIBRID Technology, delivering 360% more strength than typical hybrid polymers. It offers superior colour retention without yellowing, exceptional waterproofing, and vibration resistance, making it ideal for both interior and exterior applications. Compatible with a wide range of materials including glass, metal, wood, stone, and most plastics, CT1CLEAR is flexible, paintable, and trusted by professionals worldwide for durable, clean, and reliable sealing and bonding.
| ASIN | B002RJ2OS8 |
| Best Sellers Rank | 186 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Sealers |
| Brand | CT1 |
| Colour | Pale |
| Compatible Material | Glass, Tile, Concrete, Stone, Synthetic Materials, Plastic |
| Customer Reviews | 4.6 out of 5 stars 7,701 Reviews |
| Global Trade Identification Number | 08711595081641 |
| Included Components | Applicator Nozzle |
| Item Dimensions | 7 x 6.8 x 23.2 centimetres |
| Item Form | Tube |
| Item Type Name | C-Tec CT1CLEAR CT1 Tube Sealant 290ml Cartridge - Clear |
| Item Weight | 340 Grams |
| Item dimensions L x W x H | 7 x 6.8 x 23.2 centimetres |
| Item weight | 340 Grams |
| Manufacturer | C-Tec |
| Manufacturer Part Number | CT1 539506 |
| Material | Polymer |
| Model Number | CT1CLEAR |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Shower |
| Unit Count | 290.0 millilitre |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
R**E
Absolutely brilliant! Perfect for heavy outdoor planters
I am simply delighted with CT11! I used it to fix heavy planters onto a wall, and the results are absolutely wonderful. Here is why I highly recommend it: Incredible Hold: It holds the planters extremely firm against the wall. Once set, they don’t move at all. It gives you real peace of mind. No Mess: The texture is perfect. It doesn't run or drip during application, making it very clean and easy to work with. Fast Drying: It cures and dries remarkably fast, which is excellent for outdoor projects. This is a top-quality product that does exactly what it promises. I love it and will definitely buy it again
J**N
ultra strong, ultra flexible professional construction adhesive
This is an alternative to silicone sealant and most construction adhesives. It’s got fantastic grip and adhesion and you can apply it in damp conditions if you have to. It’s not cheap but it is very, very good at what it does. It’s what construction professionals use. It’s not as easy to clean up as silicone - it’s much stickier so getting a clean bead without a thin layer of residue is trickier than with silicone, but it’s a much better product - unless disassembly is really important. It also lasts a long time in the tube. The nozzle will get clogged, but you can just remove it and poke out the dried flexible plug from the outside end, and what’s left in the tube can be used as normal even several months later. It comes in a range of colours and doesn’t yellow over time. When used for sealing a bath, the white stuff does discolour, but don’t confuse dirt with discolouration - it cleans up perfectly white. I’ve used it for lots of things, including glueing thick limestone tiles to tile-backer board for a removable panel in front of my toilet cistern. Because it remains flexible, it’s ideal for this sort of thing. There are lots of videos about it on YouTube which means that a lot of people are going to end up in difficulty removing bodged DIY jobs. I’ve even used the clear stuff for mending shoes - it’s that strong and flexible! It sticks really well to pretty much everything - except natural rubber
R**N
Does what it says on the tube.
CT1 is the best of the adhesive sealants. There is nothing not to like.
J**N
Best on the market
CT1 is an amazing construction adhesive - many colours - very smooth finish - suitable for many applications - easy application - can be applied to great thickness - very strong and can be used under water! Great value
M**N
⭐⭐⭐⭐⭐ **I finally gave in... and now I wish I'd bought it years ago!**
⭐⭐⭐⭐⭐ **I finally gave in... and now I wish I'd bought it years ago!** I'd been hearing people rave about CT1 for years, but I kept putting off buying it. I honestly thought, *"How different can one tube of sealant really be?"* Surely it was just another sticky tube with a fancy reputation. Well... I couldn't have been more wrong. The moment you start using it, you can actually feel the difference. It applies smoothly, grips incredibly well and gives you confidence that whatever you've just fixed is staying exactly where you put it! Let's just say... it sticks better than a toddler with chocolate-covered hands! 😄 The finish is what impressed me the most. Instead of looking like one of my usual DIY attempts, it actually looked neat, clean and professionally done. For once I stood back, looked at the finished job and thought, "I might actually know what I'm doing!" It's easy to work with, doesn't drag everywhere and leaves a really tidy finish if you take your time. You can tell this isn't just another tube of sealant—it's a genuinely high-quality product. If you've been sitting there, like I was, wondering whether CT1 is really worth the extra money, stop wondering and just buy it. I only wish I'd ignored my own stubbornness and bought it years ago. An outstanding product that has definitely earned its reputation. Five stars without hesitation.
D**D
Best yet
Best yet makes a really strong bond, used it on some loose pavers done the job great. No mess no backbreaking work removing old cement and mixing fresh mortar
D**G
Even sets under water.
I love this stuff! It's costler than standard sealant, but better. I've even used it to cement tiles under water. How long it lasts is another question, but the underwater tiles are still locked down 2 years later.
S**E
Extremely versatile and strong sealant — ideal for every-day DIY and home repairs
I bought CT1 White TRIBRID® sealant & adhesive because I wanted a reliable product that could handle a variety of materials and tasks — from sealing bathroom joints to fixing a small leak around a window frame. After using it for a few different jobs, I’m impressed with how well it performs and how many situations it handles effectively. When applying CT1, the tube was easy to use with my standard skeleton caulking gun; I cut the nozzle carefully and applied a neat, consistent bead. The product glides smoothly and applies evenly. After smoothing with a damp finger, the finish looked clean and professional — no gaps or air pockets. Once cured, the seal felt solid and waterproof. I tested it on both indoor (bathroom sealant job) and outdoor (window frame) surfaces — the bond held firm under damp conditions, and I’m confident it will resist temperature changes and weather. I also used CT1 to bond a small wooden trim to a tiled wall — it adhered strongly to both the wood and tile without additional fixings. Given the manufacturer’s claim that its special “TRIBRID” formulation bonds to many materials (metal, glass, wood, tiles, concrete, plastics, even fiberglass) and remains flexible yet durable, that versatility matches what I saw in real-life use. Overall, CT1 feels like a premium multipurpose sealant/adhesive that really lives up to its claims — no shrinking, no cracking, and a strong, watertight bond. I appreciate that it’s solvent-free and odourless, which made application easier inside the house. Pros: Bonds strongly and reliably on many materials (wood, tile, concrete, metal, etc.) — handy for versatile DIY jobs. Easy to apply — smooth bead, even curing, no mess if applied carefully. Waterproof and durable — holds up under damp or changing weather conditions. Solvent-free and odourless — suitable for indoor use without strong smells. Good flexibility and no shrinking or cracking after cure. Cons / Things to check: For very fine work, controlling the bead size requires careful nozzle cutting (tiny nozzle tip). For best adhesion, surfaces need to be clean and reasonably smooth — uneven or very rough walls may need prep work. Cure takes some time; avoid stressing the joint too soon after application. Verdict: If you’re looking for a “do-it-all” sealant and adhesive — whether for bathroom sealing, minor repairs, bonding trims, or general home maintenance — CT1 White TRIBRID® is an excellent choice. It saves the hassle of juggling multiple products and delivers a strong, water-tight bond that lasts. I’d recommend it to homeowners and DIY-ers looking for reliability and versatility.
D**N
CT1 clair Construction Unique Mastic et adhésif
Excellent produit...
C**N
Estupendo
Lo estoy aprovechando para pegar cosas dentro del agua y en otros sitios con diversos materiales , funciona muy bien.
P**D
Kind of useless
Not as good as advertised
T**R
Immediate Waterproof Seal
Great stuff. Used to waterproof and seal wiring access plug in an outdoor fountain basin. Immediately waterproof and can be submerged indefinitely.
T**N
NO TOPS WITH PRODUCT
The product might be great but it is really hard to pay $25 dollars for something that you have to go buy something else to use it. I purchased 2 tubs and both tubs had no top with them. When I went back and read a few reviews I noticed that others said the same thing. So unfortunately after waiting all the time to get them and paying a lot of money for them, I got to spend more money to buy a product that had the top with it so I could use the top from the product. So total the tubs cost me $32 each.
Trustpilot
3 weeks ago
1 week ago