White Patches Over Indian Stone - TilersForums.com

[DHTiling]

Is yours black limestone..??

 

[siob]

No its a red/yellow stone. The red is more affected by the white patche, the yellow less so but im thinking thats just because its lighter and harder to see the discolouration

 

[siob]

PS. Dave i can upload pics later on to show the discolourations, any info/help is much appreciated and if youre doubtful the sandblasting will restore the stone to a level not affected by the chemical recation caused by any of the dry mix cement brushing or brick acid or seal trapping in any/all of these your advice would be greatly received. The sandblasting is planned for the next dry day, probaly Mon or Tue next week.

 

[Dan]

Bump