I have customer that have few etch marks on her countertop made out of technistone. I checked their website (eu http://www.technistone.eu/en/, us company went bankrupt 4 years ago) and found that in fact can be damaged with certain chemicals. It is 93% granite and quartz and rest are the bonding resins. I have never work on something like that.
Did anybody work on technistone?
Should I stay away or can be done?
Adam Bartos
BiO Tile