Blast Media with Defoarmers

Author:  Baenny Yam and Andrew Logan
Source:  US Patent 5,605,491
Doc ID:  1997018
Year of Publication:  1997
Abstract:  
A blast media for use in wet blasting to clean contaminants from a substrate surface comprises abrasive particles, at least one surfactant and a defoaming agent so as to reduce the amount of foam which is produced during the wet blasting process.