Renewing Silicone Sealant

Silicone is flexible and water-repellent, making it an ideal sealant for joints in bathrooms and kitchens, at all floor-wall transitions and around windows. Silicone seals are applied in areas requiring expansion joints – specifically, where tiles meet other materials or walls.
These seals perform several functions: They absorb stress and safeguard the building structure from dirt and moisture.

Not all silicone is the same. For the kitchen,where food is prepared and stored, it is recommended to use non-toxic kitchen silicone.
Sanitary silicone is ideal to withstand the high humidity often present in bathrooms. It has good drying properties and also contains fungicidal ingredients that inhibit mould growth.
However, silicone seals around your shower tray, bath or ceramic sink will not last forever. The fungicidal effect of the sealant will also wear off after a few years. This will then allow mould to form on the silicone joints.