Stephen,

 

Many years ago I started using the CA glues in stone fabrication.  I found out that I introduced the concept and application to the manufacturers and it caught on. Great products with a few drawbacks.  I have seen this green staining problem several times.  We have developed a method of removal that has been promoted by Satellite City and has been very effective.  I have sent it to about 50 companies and have not heard back yet from one who said it didn't work.   It takes some time on our end and a few hours on your end.  Please call me at 262-632-7887 so I can get you going in the right direction.

 

Monte Osterman

Technical Director - Fabrication

Stone and Tile Pros