Hi
I've got some white porcelain tiles, matt finish. They have pencil marks on them - that will not come out. I've tried various cleaning methods, last one being Lithofin Wexa Multipurpose Cleaner. Didn't appear to even touch it. Not even rubbing with an emulsifying pad. Nowt.
Any suggestions?
Paul
If it's chinagraph try acetone (nail polish remover) worked on my enamel cooker. If its graphite you could try astonish. I use that now on the enamel and it seems to remove most things without damageing it.