Anti-mould elements are added to protect the silicone sealants used in bathroom and kitchen applications. As a result, the sealant is able to prevent against mould growth for a long period of time. However, if ventilation is poor or soap residue remains on the sealant joint for long periods of time, the anti-mould properties can be affected.
Stay Fresh Neutral and Stay Fresh Acetoxy silicone sealants both offer a lifetime guarantee on protection against discoloration due to mould growth. However, this does not remove the need for regular cleaning, as soap or other deposits on the surface of the sealant joint can grow mould.