floor tiles cleaning

[md 600 driver]

any one know of a producy i can use on my floor tiles to get years of grime off them some sort of acidy type a name in portugeese would be helpfull

[Peter Belinfante]

Last time when I was in Mestre Maco I saw that they sell products from HG (I think it was somewhere in an aisle where they sell tiles, cement, etc.)

[steve]

Gavecal ( or it may be Gavacal) is good for rust and calcium stains. It is diluted with water and cleans tiles, concrete and sanitary ware. I buy it in 5 litre containers from Mestre Maco but you can also get it also in 1 litre bottles.