Brushed Black?

Dear Sir's, We have recently been requested to fabricate "Absolute Black" granite with a "brushed" finish. After 3 jobs, and call backs to all of them, I am looking for advice. All have been sealed with Enhancer Pro once. Two of them twice, and the third once more. Saturated for 15 minutes, 24hour dry time, and repeated. White spots? What should we do? We are considering not handling the product, but it is a very unique finish. Thank you, Dean Collins, Kansas City, Missouri