Bathroom & Sanitary Sealants

Sealants for Bathrooms, Kitchens & Wet Areas

Our sanitary sealants are specially formulated for high-humidity environments like bathrooms, kitchens, utility rooms, and wet rooms. These flexible, waterproof products help prevent leaks, damp, and mould — ensuring a clean, long-lasting finish around sinks, baths, showers, and tiles. We stock a wide range of silicone sealants in clear, white, and colour-matched finishes. Many options are fast-curing, low-odour, and contain anti-fungal agents to resist black mould in warm, damp conditions.

Whether you're sealing joints in tiled walls or waterproofing around sanitary fittings, we’ve got solutions trusted by professional installers and DIYers. For other finishing products, explore our Decorator’s Caulk and Tile Adhesives & Grout sections.

FAQs – Bathroom & Sanitary Sealants

What’s the difference between sanitary and general-purpose sealant?
Sanitary sealants include mould-resistant additives, making them ideal for areas with high humidity or water exposure — such as bathrooms and kitchens.

Can I apply sealant over old sealant?
It’s best to remove old sealant for a clean bond. However, in some cases, a thin layer of new sealant can be applied if the existing layer is fully intact and clean.

How long before I can use the shower after sealing?
Curing time depends on the product, but most bathroom sealants require 24 hours before exposure to water. Always check the label for specific drying and curing times.