Sealer Buying Guide: Penetrating Sealers
Penetrating sealers and impregnating sealers (a type of penetrating sealer that penetrates deeper) protect the stone or other material by penetrating into the pores and below the surface. Solid particle are then deposited to coat the individual minerals. These sealers can be either solvent-based or water-based and contain polymers such as siliconates, fluoro-polymers, siloxanes, silanes, or other blend of polymers that will coat the pores of the material.
This is a general guide to penetrating sealers.
Always consult the manufacturer for specific product descriptions and instructions.