My bathroom has this hard stain, i had tried to use baking soda, bleach, vinegar and Mr muscle bathroom, still there. when i pour, only a tiny patch of the tile become slight whiter, i tried to rub but the stain wouldn't go. Any chemical solution to recommend in Singapore?

Edited August 12, 20179 yr by jackfood

Had a similar issue in the past so far the only thing that managed to work for me was something called HCL89.

It had managed to clean my tiles and restore them to their original self

One good thing i like about it is that creates a protection layer that helps prevent my tiles from getting too overly dirty

I usually get it from http://hcl89.byethost10.com or http://hcl89.atwebpages.com

Hope this helps you out

On 8/12/2017 at 5:09 PM, jackfood said:

tried to use baking soda, bleach, vinegar and Mr muscle bathroom, still there

Don't waste your time with baking soda as it will just make things worse as its simply an old wife's tale and for bleach try not to use that as it can damage your tile's enamel permanently

Edited April 6, 20206 yr by KungFu

Try bleach again, and if it doesn't work, try acetone. It's really concentrated.