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Plastics Industry -
a variety of surfaces

Plastics Industry - a variety of surfaces

Fancy turning your surface into a work of art?

Higher production speeds and more complex design of rubber and plastic parts place increasing demands on the surface systems used in the manufacturing process. In addition to excellent nonstick properties and ease of removal from molds, factors friendly to the environment, such as the substitution of conventional release spray, are gaining importance.

High-performance and reliable coatings

High-performance and reliable coatings improve cycling times, drastically reduce cleaning requirements and help to increase productivity in production.

  • Nonstick coating for flat nozzles in film manufacturing

  • Better mold removal in injection molding via nonstick coating

  • Traction and nonstick coating of cylinders and rollers the foil processing

Customized coating systems

Solutions with special reinforcing materials

Quicker to clean, no wear and optimal traction properties: You tell us what you need – we find the perfect coating.

Flat nozzles in film manufacturing

When manufacturing special films, various types of adhesive are applied to both sides of long sheets of film depending on the specific application. The film is then dried by a series of surface nozzles that blow air onto the sheets. At the end of the line, the cooled films are cut and wound onto rolls. The nozzles have to be cleaned after each new production job. The amount of residue on the nozzles depends on the adhesive used. The cleaning process is time consuming and can take up to half an hour per nozzle. With over 30 surface nozzles per line, cleaning can easily take an entire day. When order specifications change frequently, the cleaning time increases considerably. The mechanical cleaning which is often required damages the surfaces of the nozzles over time.

ChemCoat® dramatically improves the nonstick properties of the nozzle surfaces. Less adhesive sticks to the nozzles, and any remaining residue can be easily removed with a rag. The nozzles are protected from wear. Electrical conductivity is retained despite the coating, so the films do not become electrically charged.

The effort required to clean the flat nozzles was reduced by 95% after the nozzles were coated. Productivity increased considerably, because entire cleaning shifts could be eliminated.


Mold removal in injection molding

Molded parts are made using injection molding for the production of insulators for energy plants. In the process, the liquid elastomer, pressurized and heated, is injected into the steel die (consisting of a mold core, sheath and bedplate). When the mold has cooled off and the elastomer part has hardened, the mold is opened and the finished part removed. Residue between the bridge of the injection channel and the final product repeatedly sticks when the mold is removed. This results in cracks and fractures that have to be reworked. Release spray must be used so that the parts can be dislodged from the mold without leaving residue.

Mit TempCoat® improves mold removal, particularly in the injection channel. The durable nonstick coating improves the removal of the finished parts over the long-term, without cracking and fractures.

Benefits: Quicker and easier removal from the mold. No waste. Reduced costs since release spray is no longer needed.


cylinders and rollers the foil processing

The plastic wrap on cigarette boxes is made by passing strips of film back and forth through rolls and reels. The foil has to be glued, laminated and cut to size at the highest possible line speed. The smooth surface of the rolls can cause the film to slip through or tear if tension is too high. Production is interrupted and a substantial amount of material is lost due to slippage when the line is started up again.

Coating the cylinders and rollers with ChemCoat® und PlasmaCoat® considerably improves the production flow. The optimized traction properties prevent the film from slipping through or tearing. Also, the rolls are treated with a wear-resistant coating that protects them from damage when the film is cut or stamped. The necessary electrical conductivity of the rolls is not affected by the coating.

Losses due to interruptions in production are eliminated and production costs are reduced.


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