Damaged black fragranite sink

Rachelja

I used One Stop drain unblocker in my kitchen sink. Poured it carefully but it regurgitated, splashing into sink and taking black colour off in random splash marks. Anyone got any ideas for restoring colour with any sort of "product"?

Alan_M_2

What you've done is effectively bleach the resin content of the sink.

My first port of call would be the manufacturer to see if they have any suggestions. It's unlikely you'll be able to restore it though.

Rachelja

Hi Alan

I suspected as much. I contacted Franke already and they suggested using Astonish, which is an amazing product, but has not colouring properties. I need something like a coloured Astonish that leaves a residue of colour that won't be washed away by water but I suspect it does not exist!