Introduction Shot blasting is a leading method among modern methods of surface treatment. It is generally used for surface treatment of different objects, constructions and installations prior to anticorrosive coating. It is also used for removal of old protective coatings, removal of corrosion, obtaining the desired surface texture, injection mould treatment, deflashing workpieces from moulding machine, etc. The development of new manufacturing methods forces also the dynamic development of shot blasting. The development of shot blasting covers both the development of machines known as shot blasters and media used in this treatment called blasting media. Modern shot blasting uses a variety of media. They can be divided into metal, mineral, plastic, agricultural and special media . Currently the plastic blasting media are developing most dynamically. Their application, especially in domestic industry, is insufficient. Introduction of plastic blasting media for shot blasting was a result of seeking mild blasting media that could remove layers from the surface without affecting its structure. Blasting medoa must have been selected to ensure that they were harder than removed layer, but softer than surface. The important reason behind this search was striving to eliminate tedious chemical methods for removal of old paint coatings from fragile aluminium or composite surfaces. It was most important for aviation industry, where surface treatment methods known as “Plastic Media Blasting” were developed. Other important factor forcing the development of blasting methods that use plastic media and introduction of their new varieties to industry is the dynamic development of plastic and rubber industry. Moulds require cleansing, while stamped pieces requires deflashing using methods that eliminate manual work.