This invention relates generally to methods for removing adherent
materials, for example, paint, flashes, burrs, photoresists, contaminants,
and other materials from various external surfaces. In particular, the
method employs an improved media comprising core/shell particles. The
media can be propelled against or along the surface by a gaseous or liquid
carrier medium or a mixture of gas and liquid to remove the unwanted
surface material. In one embodiment, suitable blasting equipment propels
the media, via a pressurized air stream, against a surface of an object,
for example an airplane skin, to dislodge the material to be removed.
