For the old white ones, unfortunately I've always found Cif or similar cream cleaner to be best t removing marks. Scrub hard enough and you should lose the deeper black marks too.
The stickiness is not a sign of wear as far as I am aware - just a result of the clean up.
Maybe some finishing spray or something might reduce the stickiness?
For the old white ones, unfortunately I've always found Cif or similar cream cleaner to be best t removing marks. Scrub hard enough and you should lose the deeper black marks too.
The stickiness is not a sign of wear as far as I am aware - just a result of the clean up.
Maybe some finishing spray or something might reduce the stickiness?