Less Aggressive Blast Media formed from Compacted Particles

Author:  B. Yam, A. Joseph, K. Jones
Source:  US Patent 5,376,157
Doc ID:  1994015
Year of Publication:  1994
Abstract:  
A blast media for stripping contaminants from very soft and sensitive substrates comprises compacted abrasive particles which are formed by compacting very fine particles of the abrasive into larger particles which are friable and which will break apart into fine particles upon contacting the substrate surface.