Hello... need help as i just renovated my kitchen and there's marking on my black granite that appear. It was not there when they first install it but contractor claim that it's definitely a natural stone pattern!! How can I check? I'm new to this forum & can't seem to atatch any media. Need some advise as I really do not think that is natural stone pattern as claimed

picture?

granite does have natural patterns... but if they insist it is natural, also can't do anything

Thank you all for the reply.... so looks like I have to just accept this mark then but if it's natural, it should be there when they install it but for my case, it appear later... he did get the guy to polish it but the mark is still there.

I'm new to this forum ... err... cannot seem to find how to load the pictures!

finally figured out how! 1st one was the view without the flashlight... the other 2 was taken with flash.

finally figured out how! 1st one was the view without the flashlight... the other 2 was taken with flash

The centre one is without the flash?

but if they insist it is natural

From the picture you posted, no its not natural, you spilled something on the granite?

On 19/11/2015 at 5:37 AM, TedDibiase said:

The centre one is without the flash?

I think that is the one TS means

On 26/08/2014 at 1:42 PM, joeng said:

contractor claim that it's definitely a natural stone pattern

No its not a natural pattern, its either ingrained dirt or it was etched by some sort of acid

You can use something called HCL89 to remove the ingrained dirt or the etch on the stone

You can usually get it from http://hcl89.byethost10.com or http://hcl89.atwebpages.com

It also protects the stone so that the stone is always kept new like

Take care

Edited May 26, 201610 yr by Chua65

On 12/02/2016 at 7:47 AM, CairoKing said:

From the picture you posted, no its not natural, you spilled something on the granite?

Actually it would help to know what actually spilled on the granite, if something did indeed spilled onto it, hmm

On 29/04/2016 at 6:01 AM, StyloMylo said:

I think that is the one TS means

Oh okay, thanks

On 10/08/2016 at 2:07 AM, Rondell said:

Actually it would help to know what actually spilled on the granite

True that would be helpful, but i always thought like granite stone was quite tough and resistant?

well, granite is tough, but being a natural stone, it tends to have small spacing in between them. the stains looks like it came from the milky water that plaster guys accidentally spilled on it. and left it there...

On 10 March, 2017 at 4:16 PM, kangeroo168 said:

stains looks like it came from the milky water that plaster guys accidentally spilled on it

Thats what i suspect as well from the looks of it

most likely thinner or turpentine or some chemical aicd that spilled over and left it for days. the natural stone absorb the chemical and have reaction and caused the stain