Granite worktop

[wayne]

ive got a customer who has left a plum on his granite worktop and its stained the surface. Anyone got an ideas on getting the stain out. I can get lithofin products local,it's just I don't want to ruin it by using the wrong cleaner.

 

[J Sid]

if @Lithofin BOB has no suggestions then this may help, I'm sure he will
if not this may help
MIA+BSI - Remove Stains from Stone Applications - http://www.marble-institute.com/consumers/stains/

 

[Lithofin BOB]

Is the stain a shadow , clear etch or coloured?

Do you have a picture, for coloured Fruit stains I use a our mildew away, will require a test, if etched ,possible mechanical , if a shadow, alight alkaline , poss our power clean test.

 

[WetSaw]

It can be quite nice in the summer to rest your plums on a cold piece of granite but I've never left them on there long enough for it to stain...

 

[wayne]

It can be quite nice in the summer to rest your plums on a cold piece of granite but I've never left them on there long enough for it to stain...

Not a good idea when it's frosty though

 

[wayne]

Not sure what stain is like I will get them to send me a picture

 

[wayne]

He said its black granite and it's gone a grey colour and a bit shadowy. The surface is still shiny

 

[Lithofin BOB]

Oh dear , sounds like a slight acidic based etch, not sure a cleaner will do this , may have to mechanically remove ,but this can open a can of worms as black granite can sometimes be resin bonded,dyed or colour enhanced, I used to use a dye called Zimba black to re dye these, after re etching the whole top!!! Don't advise this , can they speak to their original supplier to pop out and re surface or just advise . Unless it is a really old top.

Acidics will always be an issue even with an impregnator as these do not hold this type of contamination unless the granite is fully acidic resistant itself.

Wayne, I would not touch it,

 

[wayne]

Cheers mate. I told them to contact original supplier so they are ringing them in the morning. Cheers for the help