Important Information About Black Granite
BLACK GRANITE MUST BE TESTED PRIOR TO INSTALLATION!
A very important matter has come to our attention through both our technical support service area and our in-house testing service area. We have found several instances where Indian Absolute Black Granite products are sensitive to food products, chemicals, ultra-violet rays and cleaning agents. The granite is taking on a lighter hue in the affected areas. The polish is unaffected, however, the stone turns light gray and it takes on cloudy appearance.
Not all Indian Absolute Black Granite materials have been found to have this problem; it is only in isolated situations. We have been experiencing at least one problem per month throughout the United States and Canada.
It has been reported that some overseas factories are chemically treating the stone to get a deeper, dark black coloration. The deeper and darker the granite surface, the more desirable they become.
While there are many very reliable sources for Absolute Black Granite, precautions should be taken to prevent installation of inferior/defective material. In almost every instance that the problem has occurred, it has resulted in a breakdown of the relationships between designers, fabricators, general contractors, stone importers and the homeowner.
After all the damage is done it usually results in the project being torn out.
If you would like to test your inventory or test your purchases of Absolute Black Granite you can use both StoneTech® Professional Restore™ Acidic Cleaner and StoneTech® Professional KlenzAll™ Cleaner as testing liquids. We recommend you apply each of these cleaners in separate inconspicuous areas, let them stand for 30 minutes, rinse the surface and allow to dry. If the surface turns light gray you should avoid purchasing or using the material.
We are informing you of this to help you minimize potential losses in your business. As your stone solutions company, StoneTech® Professional wants to keep you up-to-date on current situations regarding natural stone. We know you want to continue to provide quality products and services to your customers.
If we can be of further assistance please contact us at 1-888-STONEHELP (1-888-786-6343).
Note: Above instructions are for reference purposes only. Please follow label directions on back of actual product.