The Best Bathroom Sealants for Showers, Baths & Sinks

No bathroom job is complete without the proper sealant. Unlike fillers for other jobs, bathroom sealants need to cope with a lot of elements while also looking as clean and pristine as any new shower, bath or sink.

Here at Fastbuild, we stock a huge range of sealants and adhesives for any job, including some quality bathroom sealants you can trust. Check out our guide to getting the best bathroom sealant for your needs.

What to Look For in a Bathroom Sealant

Bathroom sealants have their work cut out. Not only do they need to look great, they also have to be strong enough to withstand everything that’s thrown at them every day.

Pretty much every bathroom sealant is a form of silicone, as it’s a material that has almost all the qualities needed. However, not every silicone sealant suits the bathroom, as it’s a very particular space.

Water Resistance

First things first, pretty much everything in the bathroom needs to withstand water, so your bathroom sealant’s most important feature is its water resistance.

The main job of a bathroom sealant is to stop water from seeping through the gaps where features connect with the wall, such as the bath, sink, or shower. Liquid getting into these small gaps can cause mould, rust and leaks.

Because humidity can cause water to build up across the room, no bathroom is complete until all these potential access points are sealed.

Flexibility

Another feature separating bathroom sealants from other indoor sealants and adhesives is their need for flexibility.

Bathrooms have to endure more heat and humidity changes than anywhere else. Materials expand and shrink during heat changes, and while these fluctuations might be small, they’re enough to create cracks in sealants if the materials used aren’t flexible.

This is one of the reasons silicone is commonly used as a bathroom sealant. Silicone is a very flexible, rubber-like material that can withstand these changes while holding a strong seal.

Mould Protection

This point is perhaps the most important and is why you can’t just use any silicone sealant in the bathroom.

With their warm and humid environments, bathrooms can be the perfect environment for mould to flourish. Silicon’s flexibility is great in one way, but it can also cause small gaps that hold onto drops of water, creating the perfect space for mould spots to flourish.

It’s vitally important that any silicone adhesive you use in the bathroom has some form of mould protection. Most quality bathroom sealants will advertise their anti-fungal properties; that doesn’t mean the bathroom will be forever protected from mould growth, but it will help slow it down and reduce the severity.

Look for High-Quality Bathroom Sealants Like Everflex Bath & Sanitary

As you can see, when looking for a sealant to finish off a bathroom, there are a lot of different things you’ll need beyond pure adhesiveness, from waterproofing to temperature changes and mould protection. Therefore, it pays to get a specialist bathroom product for the job.

One of our favourite bathroom sealants is the Everflex Premium+ 500 Bath & Sanitary Silicone. Everflex is one of the most trusted names in adhesives and their silicone comes with all the features you need to give a bathroom the best finish.

Suitable for both commercial and domestic use, you can buy Bath and Sanitary 500 in bulk at great trade prices here at Fastbuild.

CT1’s Sealant & Adhesive Is Great for Adhesion

An alternative option to explore is an all-round product like CT1’s Sealant & Adhesive. Designed to work in a whole host of situations, including the bathroom, CT1 doubles as both a sealant and adhesive.

CT1 is a great choice if you need to add a bit of support strength. It’s a silicone similar to normal bathroom sealants, so it provides that flexibility and water resistance you’ll need.

The most important thing when shopping for bathroom sealants is to choose a brand you can trust. Find a reputable product designed with bathrooms in mind, and you won’t go far wrong.