Buying the best bathroom sealant is an important step to ensure your bathroom looks its best.
Bath and shower rooms are subject to wet and humid conditions, so to prevent water damage and the growth of mould, you need to apply a suitable sealant around your sanitaryware, including sinks, baths and shower trays.
It is best to use silicone sealant in your bathroom. While caulk is a popular method of sealing for walls it is not the best option for bathrooms as it is not completely waterproof.
These are the best bathroom sealants for the job.
Which is the Best Bathroom Sealant?
1. UniBond Anti-Mould Sealant
Easy to use with long-lasting protection
Size: 300ml | Colours: White or Ivory | Waterproof: Yes
UniBond’s silicone sealant features an anti-mould formula that is optimal for use in warm in humid environments. It forms a permanently flexible and waterproof seal (which reduces the chances of the seal breaking) that is touch dry in just 20 minutes.
The attached sealant gun makes it easy to use, and an integrated resealable cap is handy so you can do little bits at a time without worrying about the product drying out. It provides a long-lasting finish and is available in two different colour options.
2. Gorilla Glue Mould Resistant Sealant
An under-rated product that dries extremely quickly
Size: 80ml | Colours: Clear | Waterproof: Yes
Once applied, the versatile Gorilla Glue Mould Resistant Sealant is water-ready within 30 minutes.
It's mould resistant, can be used on all surfaces, and comes with a lifetime guarantee that it will not lead to cracks or shrinks.
What's more, it comes with a reusable nozzle making it very easy to apply.
3. Everflex 500 Bath & Sanitary Silicone
Offers long-lasting protection against mould growth
Sizes: 295ml, 310ml | Colours:: White, Ivory, Translucent, Sandstone | Waterproof: Yes
The Everflex 500 anti-mould sealant from Everbuild is efficient across all areas of bathroom sealing.
It is permanently flexible and incorporates a powerful fungicide into the formula, providing long-lasting protection against mould growth.
It also dries quickly: wait around an hour for it to be tack free, and roughly 24 hours for it to be completely dry.
Even better, it will not discolour on ageing, even in humid or damp conditions.
4. Forever Clear Anti-Mould Bathroom Sealant
Delivers touch-dry sealant within 15 minutes
Sizes: 80mm squeeze tube, or 295ml tube | Colours: White, Ivory, Grey or Clear | Waterproof: Yes
The Forever Clear’s patented Mould Shield is this sealant's main highlight, which actively prevents the growth of mildew, mould and bacteria.
It can be touch dry within 15 minutes of application thanks to its high-quality drying formula, plus it includes an anti-bacterial additive which helps to combat against new germs.
It may not be among the most well-known sealants, but it is effective in high humidity areas and more than justifies its place in this list.
5. Dowsil 785 Sanitary Sealant
This will keep your bathroom looking and smelling fresh
Size: 310ml | Colour: White | Waterproof: Yes
Dowsil, formerly known as Dow Corning, is another leading name when it comes to sealants, and the 785 Sanitary Sealant is its best product.
This white silicone sealant possesses a fungicide formula that resists mould to keep your bathroom looking and smelling fresh, and it is an extremely quick-drying product: it should be tack free in under one hour.
6. 151 Silicone Sealant
A budget option for smaller jobs
Sizes: 70g | Colours: Clear, White | Waterproof: Yes
The 151 Silicone Sealant is a good option if you only need a small amount of sealant for a small job, such as repairing tiles. Of course, if you need a little more, it's also available in a pack of six.
It's not as long-lasting as others on this list. But It's affordable, easy to apply, and includes a screw-on applicator nozzle so you don't need a gun for application. It's also available in two different colour options.
How to Choose Your Bathroom Sealant
Without a bathroom sealant, you risk exposing areas of your bathroom to moisture, which can lead to the growth of mould and water damage.
These are some of the key qualities to bear in mind when buying a bathroom sealant:
Your bathroom sealant needs to protect against mould. If it isn’t, you may end up regularly replacing your sealant and beginning the whole process again.
The majority of reputable bathroom sealants will completely dry within a hour.
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