When it comes to sealing your kitchen or bathroom, reliability is non-negotiable. You need a product that can stand up to daily moisture, resist mould, and stay put - all while looking neat and tidy. But with so many options on the shelves, choosing the best sealant can feel like a tricky decision.
To help you cut through the noise, we’ve taken a close look at some of the UK’s most popular sealants - from household names like UniBond and Everbuild, to specialist picks like Dowsil. We’ve compared their key features, from drying times and waterproofing to eco credentials and long-term performance.
If you're after a no-compromise sealant that does more than just fill a gap, Hemway’s Kitchen & Bathroom All-in-One Sealant & Adhesive leads the pack. Unlike standard silicones, Hemway is based on hybrid polymer technology, which combines the elasticity of silicone with the strength and durability of polyurethane. It’s a true 2-in-1 solution - sealing joints and acting as a powerful adhesive, perfect for fitting splashbacks, skirting, and trims.
Drying time is rapid, going tack-free in just 15 minutes, and it’s 100% waterproof, making it ideal for sinks, baths, showers, and kitchen worktops. It comes in a modern colour range, including Crystal Clear, Bright White, Light Grey, Anthracite Grey, and Jet Black, offering a smart match for any interior. Plus, with high adhesion strength, no shrinkage or cracking, and a solvent-free, low-VOC formulation, it’s the smart, eco-conscious choice for high-traffic areas. Shower ready in 24 hours, it provides lasting protection with minimal fuss.
Key Specifications:
A staple in many toolboxes, UniBond’s Anti-Mould Sealant is a dependable silicone-based option designed specifically for wet areas. It resists mildew well and cures fully in 24 hours, with a tack-free time of around 20 minutes. While its medium adhesion strength is fine for sealing purposes, it doesn't offer any bonding ability like Hemway’s hybrid does.
Colour choices are limited to White and Ivory, which may not suit modern interiors or darker tile schemes. Shrinkage or cracking can develop over time, and environmental impact varies depending on the specific formulation. It’s a good all-rounder - just not the most innovative.
Key Specifications:
Everbuild Everflex 500 is a budget-friendly silicone sealant with decent mould resistance and a faster-than-average drying time of around 10 minutes. Available in White, Clear, Ivory, and Grey, it suits a broader range of décors than some rivals.
While effective for routine sealing jobs, it offers only medium adhesion strength, and like many silicones, may be prone to cracking or shrinking over time. Its eco-friendliness also depends on the specific version. It's functional and easy to apply - but better suited for basic sealing rather than heavy-duty kitchen or bathroom use.
Key Specifications:
As its name suggests, the standout feature of EVO-STIK 1 Hour Shower Sealant is speed - it allows shower use just one hour after application, which is great for urgent fixes. However, this speed comes at a cost. It takes up to 30 minutes to go tack-free, and its medium adhesion isn’t suited for bonding tasks.
It only comes in White or Clear, with a silicone base that may shrink or discolour over time. While it serves well for quick touch-ups, it doesn’t provide the same all-in-one performance or versatility of a hybrid sealant like Hemway.
Key Specifications:
Dowsil 785 offers high adhesion strength and strong mould resistance, making it a solid choice for sanitary areas. It's a silicone-based sealant with a tack-free time of around 30 minutes and a 24-hour cure time. Available in White, Clear, and Grey, it provides decent flexibility for colour matching.
However, like other silicones, it’s subject to potential cracking over time, and its eco credentials vary. It performs well in the basics, but lacks the extra advantages offered by modern hybrid sealants.
Key Specifications:
When you weigh up all the options, Hemway’s Kitchen & Bathroom All-in-One Sealant clearly stands apart. Its hybrid polymer formula provides long-lasting flexibility, powerful adhesion, and waterproof durability - all in one tube. Add in mould resistance, a sleek range of colours, and eco-friendly credentials, and it’s a clear winner for anyone seeking premium results without the hassle.
Whether you're renovating your bathroom or giving your kitchen a much-needed refresh, Hemway’s sealant is built to handle it all - and look good doing it.
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