CT1 Sealant: The Ultimate Adhesive & Sealant Solution

Discover the power of CT1 sealant, the ultimate all-in-one adhesive for unbeatable seals and bonds in trade and DIY projects, with mould-resistant properties.
Dave
Dave
January 14, 2026
sealantsadhesivesconstruction materialswaterproofing solutionsmould preventionCT1 sealantadhesivehybrid polymerbathroom repairskitchen sealingmould-resistantwaterproof adhesive
CT1 Sealant: The Ultimate Adhesive & Sealant Solution

Discover the power of CT1 sealant, the ultimate all-in-one adhesive for unbeatable seals and bonds in trade and DIY projects, with mould-resistant properties.

Why CT1 Is the Ultimate All-in-One Sealant & Adhesive for Trade and DIY

Tired of that black mould that keeps creeping back on your shower sealant? You scrub it and you replace it, but it always returns. The frustrating truth is that the problem isn’t your cleaning, it's the sealant itself, which often struggles with constant moisture and lacks real durability.

For years, we’ve had to choose between a flexible sealant that cracks or a strong glue that’s brittle. This forces a compromise: do you want it to be waterproof, or do you want it to stick? CT1 sealant ends this compromise. It's a "hybrid polymer" that combines the immense strength of a construction adhesive with the permanent flexibility of a high-end sealant. Think of it like reinforced concrete: the concrete provides strength, while steel bars add flexibility. This unique blend creates a bond that won’t crack under pressure and a seal that won’t fail, fixing problems for good.

CT1 vs. Silicone: Why Your Bathroom Seal Will Never Go Mouldy Again

That ugly black mould on your shower seal isn’t just a sign of dampness; it’s a sign that your sealant is failing. Traditional silicone sealants contain solvents and fillers that, over time, can break down and essentially become a food source, allowing mould and mildew to grow into the seal itself. No amount of surface cleaning can fix a problem that's happening from the inside out.

CT1, on the other hand, is formulated completely differently. As a pure hybrid polymer, it contains zero solvents, meaning there is simply no food for fungal growth. Mould can't get a foothold, so your seal stays brilliantly white and hygienic. This unique quality makes it the best adhesive for shower panels and any wet areas where a clean finish is non-negotiable.

Because CT1 is 100% solvent-free, it’s also certified as a food-safe construction adhesive. This gives you total confidence to use it for sealing kitchen countertops and food preparation areas, ensuring the finish is not only waterproof but also completely hygienic for your family.

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More Than a Sealant: Using CT1's Super-Glue Strength Around the House

CT1’s hybrid power isn't just for creating unbeatable seals; it's also a super-strong adhesive that can replace nails, screws, and other glues. It creates a permanent bond on virtually any material, from wood and metal to concrete and even plastic. This means you can hang a heavy mirror directly onto bathroom tiles with no drill, no dust, and no fear of it ever falling. It has the raw strength to hold things securely in place, saving you time and hassle on jobs where drilling isn't an option.

This incredible strength is why it’s also the best adhesive for shower panels, bonding them securely to the wall while simultaneously creating that perfect waterproof seal. Its uses range from re-attaching a loose skirting board to mounting new house numbers on brick. It delivers a simple, permanent solution where other products would fail, making it the only tube you need for both sealing and bonding.

The Ultimate Repair Trick: How to Fix Leaks on Wet and Even Underwater Surfaces

Here’s a situation every homeowner dreads: a leak springs in your gutter, and the forecast is non-stop rain. While most products require a bone-dry surface, CT1 sealant is a powerful waterproof adhesive for wet conditions. You can apply it directly onto the dripping area to stop the leak in its tracks, without waiting for the weather to clear.

This unique ability works because CT1 actively pushes water out of the way, allowing it to grab onto the material underneath and form a permanent bond. This makes it an ideal sealant for underwater applications, perfect for fixing a cracked pond liner or even re-attaching a loose tile in a swimming pool without having to drain it. It’s the ultimate problem-solver for any wet-weather repair.

A Simple Guide to Applying CT1 for a Perfect, Paintable Finish

To apply CT1 for a perfect finish, first ensure the area is clean and free of dust or old, failing sealant. Once you've applied a steady line of CT1 into the gap or onto the surface, you’re ready for the simple trick that ensures a professional-grade finish.

This next step is called "tooling." Using a simple plastic finishing tool or even a wet, gloved finger, press gently and drag it along the sealant line. This action creates a neat, concave profile and, more importantly, pushes the CT1 firmly into the joint for a stronger, more reliable bond that looks fantastic.

Unlike stubborn silicones that repel paint, CT1 is fully paintable. This is a huge advantage for household repairs. You can fill a gap along a skirting board, smooth it off, and then paint right over it, making the fix completely invisible. While CT1 comes in many colours, its paintable nature gives you total control over the final look.

How Long Does CT1 Take to Cure? (And What Does 'Cure' Even Mean?)

So, how long does CT1 take to cure? It's a key question, because "curing" is more than just drying. Think of it like baking a cake: drying is the top feeling firm, but curing is the whole cake setting into its final, strong form. This chemical process is what gives CT1 its incredible strength, so patience pays off.

CT1 is typically touch-dry and won't smudge in about 25 minutes. However, for it to gain full strength, you should allow 24 hours for a complete cure. For high-stress areas like a shower seal or a weight-bearing bond, giving it that full day ensures the repair is 100% waterproof and ready for anything.

One Tube, Zero Headaches: Is CT1 the Right Choice for You?

Instead of a toolbox cluttered with different tubes for different problems, CT1 offers a single, powerful solution. It's a tool that seals, bonds, and fills, wet or dry, in a way traditional products simply can't.

Start with one small fix, like sealing a draughty window or re-attaching a loose tile. Experience firsthand how it creates a permanent, paintable repair where others crack and fail. With CT1, you’re not just buying an all-in-one sealant; you’re gaining the confidence to fix it right the first time.

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