Nanocoating with a Brush
i-mold GmbH & Co. KG, Michelstadt, Germany, has obtained exclusive rights to sell a new mold coating from the American company Nanoplast Inc. in German-speaking countries. The coating is called NanoMoldCoating and can be applied without any special effort in every injection molding shop. Following thorough cleaning of the substrate, a few drops of the coating material, which is supplied in liquid form, are placed on a brush or microfiber cloth and applied to the surface to from a thin, uniform film. This film is then dried for 10 minutes with a hot-air blower; following this, the coated surfaces must be allowed to rest for two hours. An even longer service life of the coating can be achieved by applying a second coat. This - and even the revitalization of a worn coating - simply requires repeating the procedure. Thanks to this technology, even specific mold components can be coated, for instance, ejectors, cores and slides that come into contact with the melt.
The effectiveness of the coating results from components that firmly adhere to the mold’s surface and form a thin, long-lasting barrier layer with especially good sliding qualities. During injection molding, this means increased productivity, shorter cycle times and high molded part quality, since the coating improves the flow and filling characteristics of the mold, eliminates surface flaws and protects the mold’s surface against corrosion. A mold treated with NanoMoldCoating can process all common commodity and engineering resins, even filled and reinforced grades. The coating is temperature-resistant up to 540°C and - unlike when using mold release agents - gives residue-free parts that are suitable for use in demanding applications in the medical and food processing fields without additional cleaning or other post-molding operations and can be painted without difficulty, if so desired. Depending on the resin, fillers and injection molding parameters, the coating exhibits a service life of up to 500,000 cycles.
i-mold GmbH & Co. KG
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