Sealants

MS polymer sealants have largely replaced silicone in many applications because they stick to more surfaces without primer and can be overpainted. For bathrooms, you need something that stays flexible, handles constant moisture, and sticks to ceramic, metal, and whatever else is in there.

Movement joints are where different materials meet or where buildings naturally flex. The sealant needs to stretch and compress repeatedly without tearing away from the surfaces. Weather seals around windows and cladding face the same issue, plus UV exposure and temperature swings.

Weather seals around windows and cladding need UV resistance since constant sun exposure degrades many sealants over time. Bathroom applications need mould resistance and the ability to bond to ceramic, metal, plastic, and glass within the same joint. Fire-rated sealants suit buildings where preventing fire spread through service penetrations is required by building codes.