Unless you are planning to utilise bluestone pitchers naturally permeability we recommend that you always seal your bluestone pitcher pavers with a stone enhancer sealer. It not only brings out the beautiful bluestone colouring but also makes it waterproof, stainproof and maintains slip resistance.
Sealing is recomended for all natural stone tiles and pavers. A range of sealers suitable for various applications are available. We do not recommend cleaning natural stone with hydrochloric acid.