Bathroom Sealant

Seal and Protect Wet Areas with Confidence

Designed for lasting performance in humid, wet environments, bathroom sealants play a vital role in sealing junctions around showers, baths, sinks, and tiles. From preventing water ingress behind fittings to resisting black mould growth, these products ensure a cleaner, safer finish. Whether used in domestic bathrooms or commercial washrooms, high-quality sealants provide strong adhesion to multiple substrates including ceramic, uPVC, and enamel.

Used alongside suitable finishes like Bathroom Paint, a sealant protects vulnerable areas while improving hygiene. Available in a range of colours and formulations - including mould-resistant and low odour types - they are easy to apply and tool. Many options offer long service lives and quick cure times, reducing downtime in high-use areas. For large-scale projects, select products certified for sanitary and high-humidity use, ensuring compliance with health and safety expectations.

Frequently Asked Questions

Can bathroom sealant be applied to damp surfaces?

Bathroom sealants should be applied to dry, clean surfaces for best results. Applying sealant to a damp substrate can weaken adhesion and compromise performance. Some hybrid polymer formulations are designed to tolerate slightly moist surfaces, but even then, standing water must be removed. Allow surfaces to dry thoroughly after cleaning or exposure to water before applying sealant to ensure a tight, lasting bond.

Is bathroom sealant suitable for use in kitchens or utility rooms?

Yes, many bathroom sealants can be used in kitchens and utility rooms, especially around sinks and splashbacks where water resistance is needed. However, for food-safe areas, it's important to check whether the product is certified for such use. Silicone sealants with anti-fungal properties are common in kitchens due to high moisture levels. Always consult the technical datasheet or supplier before choosing a product for dual-purpose applications.

How do you remove old bathroom sealant before reapplying?

To remove old sealant, use a specialist sealant remover or a sharp utility knife to cut and peel away the existing bead. Work slowly to avoid damaging the surface beneath. Residue can be cleared with a scraper or cloth soaked in remover, ensuring the surface is clean and smooth before applying new sealant. Avoid using household solvents like white spirit, which may not fully remove residues or could damage surfaces.

Are there paintable bathroom sealants?

Most silicone bathroom sealants are not paintable. If a painted finish is needed, look for hybrid or acrylic-based sealants that accept overpainting once fully cured. These are suitable for lower-exposure areas where the sealant is unlikely to be subjected to continuous water contact. Always check the product label or datasheet for paint compatibility, and test on a small area before full application.