On my outside wall there are some pretty ugly stains. Think the cement used as adhesive is leaking out and staining the tiles. It has been impossible to remove these stains, have used all kind of domestic and "lethal" chemicals. Any idea how to remove the white stains/deposits? Alternatively, can I paint over them and make them disappear? Thanks!

hi

I had similar problem on the 'black' titles outdoor, it is calcium and lime deposit. after I scraped it thin, then I managed to clean it with HG Lime Scale Remover. soap the stain with the chemical for about 30 minutes, then clean it with a scotch brite that heavily soaped with the chemical.

the HG products are available in HomePro and Central. get the concentrated version.

http://oc.hg.eu/wizard-shop/index/id/23856/productId/708

after months, the strain come back. clean the stain with the chemical before the scale build up !

hi

I had similar problem on the 'black' titles outdoor, it is calcium and lime deposit. after I scraped it thin, then I managed to clean it with HG Lime Scale Remover. soap the stain with the chemical for about 30 minutes, then clean it with a scotch brite that heavily soaped with the chemical.

the HG products are available in HomePro and Central. get the concentrated version.

http://oc.hg.eu/wizard-shop/index/id/23856/productId/708

after months, the strain come back. clean the stain with the chemical before the scale build up !

Thanks for the info - sounds good. Will get it today and have a go.