I think the stain is already mixed between rust

Sounds like a mutant growth

I desperately need help on how to clear the sturborn stain

What type of tiles are yours? marble, mosaic or etc?

Your tile condition also same like TS?

I think should be, most resale flats usually have this issues, its very common

On 08/07/2015 at 7:53 AM, TedDibiase said:

Sounds like a mutant growth

Actually these types of stubborn stain problems are not uncommon actually

On 20/01/2016 at 7:09 AM, CairoKing said:

I think should be, most resale flats usually have this issues, its very common

I think you are right, i do notice that about resale flats, hmmm

On 26/01/2014 at 6:55 AM, Ziad said:

You can also use something called HCL89 to clean very tough stains

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

http://hcl89.atwebpages.com

What it does is that it cleans you tiles and the grouts

For me i find this the most effective in removing tough stains from my tiles

Hope this helps you out

Had some issue with some tough stains on my homogeneous tiles, so decided to use the HCL89 from http://hcl89.byethost10.com and was able to remove the stain. Tried alot of stuff like vinegar and etc, but it seems only this HCL89 worked best for me to clean my tiles, good product

On 09/07/2015 at 7:53 AM, TedDibiase said:

Sounds like a mutant growth

You make it seem so scary, hahaha

It's not easy to stain this flooring.I think you should take suggestions by expert.

Edited July 12, 20179 yr by fastlocalgaragedoor

Your tiles condition is very bad.

Thank you for sharing this useful information

On 7/25/2016 at 7:18 AM, BenBernanke said:

I think you are right, i do notice that about resale flats, hmmm

Actually it also depends on the different kinds of tiles as well like for example homogeneous tiles tend to get dirty more easily

Are you still considering the tile replacements though? if you are, maybe you'd be interested in Viewgres Tiles? Few things you may like to know about Viewgres Tiles:

 

1. low maintenance. Its a non-porous material that don't need much polishing, sealing, or waxing. It only needs basic cleaning.

 

2. Highly durable. Yes, its a highly durable material, with Mohs hardness of grade 7. It's a heavy-duty tile made to last!

 

3. Available in many styles. It can be made to look like marble, granite, wood, slate, etc. You won't be disappointed by its style.

 

Want to know more? Continue reading here to find out more about Viewgres Tiles: https://www.stoneamperor.com.sg/5-solid-advantages-of-viewgres-porcelain-tiles/

Hope someone will find it useful. 

Mine is a resale and previous occupant placed mats in the common bathroom that traps water. Guess they don't clean often, so when the water evaporates, it leaves behind limescale.

I have tried different stuff (on & off) on this issue for the past 9 years; vinegar, baking soda, bleach, HCL. They probably work for some stains but not those in my bathroom. Recently work is slower and decided to give it another go. If don't work, may renovate it.

Recent tries was HG Professional limescale remover and acid that removes cement. I think the HG brand is probably more suitable for taps, sinks, bathtubs. It did nothing to my stains. The acid works great on the grout lines but not on the tiles.

Since the chemicals don't work, I decide to go back and try more primitive methods.... SANDPAPER. Had some leftover fine grit sandpaper (1200cw) from past projects and give it a go on the tiles. The sandpaper I use is waterproof and I cut them into thumb/finger size. Wet them and start sanding on the stains. Need to replace with new sandpaper frequently . Use a damp cloth to wipe off the stains that came off.

I am quite happy with the results; pictures attach.

 

Edited August 6, 20197 yr by w7_lee