Best Bathroom Sealant and Shower Sealants Buying Guide
When looking at the best option for your bathroom and sealing needs, there are several types of products to choose from:
Caulk – this sealant is versatile as it can be used to seal trims, walls and ceilings and can also be painted over so it blends in with the rest of the room. However, it is not totally water-resistant, so not the best option for bathrooms or shower rooms.
Silicone – a silicone sealant is the best choice for a bathroom or damp space as it is waterproof and so creates an effective barrier against moisture. It can’t be painted over however, so you need to choose a colour that best suits your bathroom suite. The silicone used comes in two forms:
- Neutral cure – low odour, flexible and good for using on non-porous surfaces such as tiles or glass.
- High-modulus – these sealants, typically made from acetoxy silicone tend to set quicker and harder, but they do have a distinctive ‘vinegary’ smell.
Silicone sealants can be also broadly split into two types:
- Multi-purpose silicone: these can generally be used in a wide variety of home settings and will work with many surface materials.
Sanitary silicone: these are best for wet locations, such as bathrooms as a sanitary sealant will more robustly resist the formation of mould and mildew caused by moisture.
To get the right type of sealant for your bathroom job, there are some key things to consider:
Sanitary safe – this means it has been formulated especially to be used in both bathrooms and kitchens where hygiene is a priority.
Colours – the sealant needs to work with your bathroom suite and tiling so look for the best colour to match your room’s design. Ice white is a good go-to colour for most bathrooms and shower rooms. Other popular silicone sealant colours include grey, ivory and even black. Just be mindful, that pretty much all silicone-based sealants cannot be painted over, so you need to be happy with the colour, as well as the finish of the sealant.
How long it takes to dry – most bathroom sealants take a full 24 hours to be completely dry, so you will need to factor this in as it means you shouldn’t really use your bathroom during this drying period. If convenience is your priority, or time really is of the essence, then some silicone sealants are designed to be fast-drying, with some products able to be touch-dry within one hour of application.
Waterproof – it goes without saying that your sealant should be effective in repelling water but for long-lasting results, opt for bathroom sealants that are 100% waterproof and so create a lovely waterproof seal around your bath or shower tray.
Anti-Mould – your bathroom or shower is a damp environment and so a potential breeding ground for mould and mildew if they are allowed to take hold. Always look for a bathroom sealant that is anti-mould and anti-fungal, so you get that extra layer of protection and means you won’t be replacing the sealant on a regular basis due to unsightly mould build-up.
Bacteria resistant – the warm and damp conditions of any bathroom make it the perfect environment for bacteria to thrive. To help prevent the spread of these unwanted microbes, look for a sealant that can also help to reduce bacteria from taking hold. Most anti-bacterial silicone sealants are effective against a wide range of bacteria, including E. coli and Campylobacter.
Flexible – getting in and out of your bath or shower on a regular basis means there is an amount of pressure and movement exerted on your tub and so your silicone sealant needs to be permanently flexible enough when dry to have the right amount of give, without cracking or splitting.
Low odour – due to the nature of silicone it is inevitable that your bathroom sealant will have an odour, at least in the application stage, low odour products are available, to make applying the bathroom sealant less of a personal irritant, especially if you have sensitivities or allergies.
With its three-way protection against unsightly mould, UniBond Triple Protection Stop Mould Sealant is one of the best bathroom sealants you can currently buy. This waterproof silicone creates smooth joints and is touch-dry in just 20 minutes. After 24 hours, it is permanently flexible so a great choice for high use bathrooms and has little odour when applying. The UniBond white colour is bright and fresh and overall, this sealant is easy to apply, giving you plenty of protection against moisture, mildew and fungal spread. Highly recommended.