Help how to get Grey Grout off white anti slip tiles?

bery_451

Hi,

My white floor anti slip tiles are like finely textured. The problem is the grey grout/adhesive have stuck on top them. :eek:

I tried steamer and brush and it doesnt seem to come off that easily.

Am i too late to rescue these tiles or what can i do or use or buy to get set grout/adhesive stains off?

theonlywayisup

What are the tiles made of? I have limestone and used a cement remover which worked brilliantly after our floor went down.

http://www.lithofin.com/en-US/lithofin-kf-cement-residue-remover

FreeBear

Be very careful using a chemical cement remover on limestone tiles - It is basically hydrochloric acid which will eat in to limestone - The Lithofin product contains methanesulphonic acid and formic acid - Not good for limestone.

Assuming scrubbing pads from the kitchen haven't worked then...

If the OP's tiles are ceramic, then a dilute solution of brick/patio cleaner (again, hydrochloric acid) should do the job. Do wear rubber gloves, goggles, and avoid breathing in the fumes. Test in a hidden area to make sure the acid doesn't eat away at the tiles. Keep a bucket of water to hand with a generous dash of bicarbonate of soda mixed in. Wash off any splashes with this water along with the tiles.

kerri_gt

Have you tired the likes of a BBQ cleaner brush? Something really stiff. Again, try a small, inconspicuous area first and gently does it initally, it's easier to apply more pressure than deal with a damaged tile.

theonlywayisup

FreeBear wrote: »

Be very careful using a chemical cement remover on limestone tiles - It is basically hydrochloric acid which will eat in to limestone - The Lithofin product contains methanesulphonic acid and formic acid - Not good for limestone.

If that's aimed at me you can forget it, with due respect.

The floor has been down for nearly 16 years. Still looks as good as new and we only use Lithofin on it - cleaning, maintaining, etc etc. We have dogs, chickens, lamas (all of which occasionally wander through) and I don't' have a stain or issue.

From experience I can say it is great for limestone.

FreeBear

theonlywayisup wrote: »

If that's aimed at me you can forget it, with due respect.

A general warning about any acid on limestone. If you want to see what very dilute carbonic acid does to limestone, just pop in to your nearest tourist cave.

I've been using some fuming hydrochloric acid this morning to remove some limestone deposits (hardened lime/marble plaster) - it cleaned the buckets out a treat in seconds.

bery_451

theonlywayisup wrote: »

What are the tiles made of? I have limestone and used a cement remover which worked brilliantly after our floor went down.

http://www.lithofin.com/en-US/lithofin-kf-cement-residue-remover

They are porcelain floor tiles.

bery_451

FreeBear wrote: »

Be very careful using a chemical cement remover on limestone tiles - It is basically hydrochloric acid which will eat in to limestone - The Lithofin product contains methanesulphonic acid and formic acid - Not good for limestone.

Assuming scrubbing pads from the kitchen haven't worked then...

If the OP's tiles are ceramic, then a dilute solution of brick/patio cleaner (again, hydrochloric acid) should do the job. Do wear rubber gloves, goggles, and avoid breathing in the fumes. Test in a hidden area to make sure the acid doesn't eat away at the tiles. Keep a bucket of water to hand with a generous dash of bicarbonate of soda mixed in. Wash off any splashes with this water along with the tiles.

Ok which brick/patio cleaner you suggest to buy for getting dried grout off?

FreeBear

http://www.lithofin.com/en-US/lithofin-kf-cement-residue-remover as mentioned by theonlywayisup.

https://www.diy.com/departments/sika-clear-concrete-remover-5000ml/797782_BQ.prd would also work.

As with all acids, remember to add them to water slowly when diluting them. Never add water to acid. Doing so will cause a reaction that spits hot water & acid back in to your face.