efflorescence or accidental flecks of paint ruining brick, stone and paving slabs, Sika’s powerful acid cleaner is your secret to correcting them all. The stain remover can be used neat for ...

Thankfully, renewing old bricks is easier than you think. For mortar, you simply smash it off with a hammer. Muriatic acid diluted in water works wonders for stains of all kinds, just be sure to ...