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Technical Paper

Plastic Media Blasting an Alternative for Coating Removal

1989-04-01
890917
Plastic Media Blasting (“PMB”) is a revolutionary method for the rapid and safe removal of primer, paint and even powder and other chemically resistant coatings from a vast range of products without the use of toxic chemicals or pneumatic blasting with hard abrasives. Although resembling sandblasting, PMB does not use the hard abrasives or high pressures of that process. Instead, PMB uses reusable-plastic particles which are applied at pressures of 20 to 40 psi. The unique abrasive blast media not only replaces potentially hazardous abrasives such as silica sand, but since it is reusable it also generates less overall waste material.
Technical Paper

Plastic Media Blasting - The Maturing of the Technology

1991-02-01
910925
Plastic media blasting (PMB) is a process for the rapid, economic and safe removal of coatings from almost any product without the use of toxic chemical strippers, burn-off systems, sandblasting or hand or mechanical abrasion methods. Although resembling sandblasting, PMB does not use hard abrasives, such as silica sand. Rather, the process employs recyclable plastic particles, which are pneumatically applied at low pressures of 20 to 40 psi. The plastic particles vary in hardness from 3.0 to 4.0 Mohs, as compared to hard abrasives which are in the 7 Mohs range. Since the plastic granules are harder than coatings but softer than underlying substrates, PMB can quickly remove primers and topcoats without harming sensitive substrates such as aluminum, brass, copper, magnesium, thin steel and titanium.
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