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The GRAFE group has developed a matting agent for the representation of various surface effects in a single step


The trend towards matte surfaces is still continuing. For a few years now, new vehicle models with an extremely matt surface have been becoming more common on the market, standing out clearly from the previous cars that had a metallic finish. This trend is however also noticeable in the consumer goods sector and is desired by many consumers when it comes to elegant, exclusive surfaces. In addition to the requirements of a modern, matte appearance, though, demands on a resistant, scratch-resistant surface are also increasing at the same time. So far, however, this impression has only been possible by means of an expensive reworking or treatment by painting, sandblasting or the use of soft paint or IML films.


The GRAFE-Group from Blankenhain, Germany has developed a matting agent with which different surface effects can be represented with a single tool. The addition of this additive occurs directly in the manufacturing process of the plastic component (injection and extrusion).
"With the help of our matting agent, glossy and matt surface effects can be realized in a single tool," says Mr. Danny Ludwig, Director of the GRAFE-Design-Center. "As a result, plastics processors can dispense with the use of an eroded or etched injection mold. This not only saves costs but also adds production flexibility," the expert explains.
The matting agent is embedded in the plastic melt and produces a diffuse light refraction/scattering, even in the case of polished mold surfaces. "This creates a matte, satin finish with a velvety feel," says Mr. Ludwig. However, the product can do even more: It also provides somewhat improved scratch resistance.
This not only enables customers to generate added value in their process; finished components are also easier to handle, and the final consumer receives a single, efficient product with an optimized service life.
"We have been working on the matting agent since 2014," says the Head of Development. Meanwhile, projects for SAN as well as for ABS and PC/ABS have already been conducted. "In principle, there are applications in all sectors in which special visual effects and a good feel are a focus," Mr. Ludwig says.


 GRAFE at exhibition K2016 in Düsseldorf: hall 6, booth E75





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