Composition Materials Plasti-Grit^® Plastic Blast Media is a preferred media for safely removing paint from commercial & military airplanes and jets, and in aircraft maintenance operations worldwide.  Plastic Media Type V Acrylic is used on aluminum & composite aircraft skins, as well as for blasting delicate parts.  Plastic Media Type II Urea is used on harder aluminum aircraft parts and landing gear.  Type VI Clear-Cut is effective on aluminum and composites. 

For over 30 years, Composition Materials has manufactured Acrylic , Urea & Clear-Cut Plastic Blast Media that meets the Military specification requirements for MIL-P-85891A, approved for use by the U.S. Army, Navy & Air Force.  Many commercial and private jet companies request Mil-Spec grade Plasti-Grit Plastic Blast Media for aviation paint stripping and aircraft maintenance operations.

Composition Materials offers a complete line of blasting media grits for environmentally safe paint & coatings removal from boat hulls & decks.  Soft abrasive blasting media are used to quickly & safely remove paint & coatings without damaging delicate hull surfaces such as fiberglass, wood or aluminum.  For fiberglass boat paint removal, we recommend Clear-Cut Plastic Blasting Media for indoor blast operations or Walnut Shell Blasting Media for outdoor blasting.  For wooden boats, we recommend either Walnut Shell Blasting Media or Corn Cob Blasting Media.  Clear-Cut Plastic Blasting Media is effective on aluminum boats. Please contact us for assistance in selecting the media and mesh size for your paint stripping application, as well as for blasting solutions in preserving gel coats.  Additionally, Clear-Cut Plastic Media is a superior paint additive for non-skid / anti-slip boat decking.  

In this Video, American Dry Stripping removes paint from a vintage corvette using Plastic Media Blasting. The video looks at the advantages of Plastic Media Blasting: easy to use, fast paint stripping, easy to clean up, recylcable, environmentally friendly, safe on delicate substrates such as the Corvette fiberglass body, and cost effective.

An effective method of stripping all metal types, Plastic Media Blasting removes all or a portion of a cured powder coating from the surface of a part without causing damage. This article compares Plastic Media Blasting with several other stripping methods for powder coating, environmental considerations, as well as blasting equipment and costs.

Powder coatings produce highly durable finishes, but can be difficult to remove when parts need to be recoated. Several stripping methods include molten salt, burn-off oven or glass bead blasting.  With these methods, many substrates are unable to survive the coatings removal process without damage. The alternative is Plastic Media Blasting which uses reclyclable thermoset plastics to remove powder coatings while generating only a small amount of dry residue. Plasti-Grit plastic media is non-hazardous and if the powder itself does not pose an environmental problem, hazardous waste is non-existent.

Plastic Media Blasting has been used extensively by the US Department of Defense for stripping aircraft and aerospace components to replace toxic chemical strippers.  Read more...

When restoring or repainting cars, considerations include the type of substrates such as steel, aluminum, plastics, composites and fiberglass, as well as the types of paints and coatings.  Paint manufacturers recommend applying new paint to properly prepared surfaces. 

The recommendation for automobile paint stripping is Plastic Media Blasting, a rapid, economic and safe method to remove coatings without causing damage to underlying substrates including aluminum, fiberglass and even plastics.  It removes paint coatings without etching, marring, warping or otherwise damaging surface integrity.  Plastic Blasting Media and be re-used multiple times, making it economical.  Click for more information on the Types of Plastic Media available and Plastic Media Blasting Equipment.  Read More....

Recently we were requested to supply virgin Plastic Blast Media by an aircraft manufacturing company. There are several issues involved which are worth discussion.

First, the MIL Spec., MIL-P-85891, does not require virgin plastic as raw material in manufacturing Plastic Blast Media, but it has been an option in the MIL Spec for many years. Virgin media is specified as being manufactured using plastic, molded specifically for the purpose of manufacturing Plastic Blasting Media. But, because of all the specifications imposed by the MIL spec, the virgin requirement ends up being unnecessary and expensive.

Our products, Plasti-Grit^® Urea Type II and Melamine Type III, are made from virgin plastic using the following definition. All our raw material comes directly from molders who have rejected the parts we buy for aesthetic reasons. For example: flawed dinnerware, cracked electrical switch plates, or broken tiles. These parts are equivalent to parts molded specifically for the Industry as they have not been used in an industrial or consumer application.

If you have a customer with questions on the MIL Spec., please give us a call.