The sealing of limestone is quite different to sealing other surface types. To maintain the integrity of the limestone, it must be allowed to “breathe”. When sealing limestone, the pores in the rock are filled with the sealant with no trace on the outer surface. This allows it to breathe as well as allowing any water that gets into the stone to reach the surface and evaporate.

Research is also showing that bacteria seem to play a vital role in maintaining the integrity of the stone. In order for these bacteria to survive and prosper the sealant must provides a comfortable environment in which they can live and reproduce.

Outdoor Clean and Seal use a unique environmentally-friendly, water-based sealant that will ensure protection from chemical attack, unsightly mould and fungal-infestations, and extend the life of your limestone.