Global supplier of custom color and additive masterbatches for plastics Americhem Inc., Cuyahoga Falls, Ohio, unveiled a next generation of scratch and mar resistant additive masterbatches at the 2015 Automotive Interiors Expo held in Stutgart, Germany in June.
Developed for use with filled and unfilled PP, the new masterbatches reportedly set a new level of scratch and mar protection, meeting and exceeding approved automotive specifications for superior protection. Ryan King, development segment lead, transportation, at Americhem, confirms that this is a proprietary blend of ingredients that also combine UV and antioxidant stabilizers and, of course, color. “Each formula is custom made to meet specific OEM’s requirements which can vary, such as weathering performance. The base resin can be unfilled or filled PP, or TPO. A typical example may be an A-pillar.”
The new scratch and mar protection additives have been tested to the standards provided by major automakers and have been found to also provide mold release benefits. The company maintains that even for customers that are using resins that contain scratch and mare protection, its new color masterbatches with scratch and mar properties have been shown to provide a synergistic effect, offering the best scratch resistance available.
Americhem offers all major scratch resistance testing required by global OEMs. It maintains a 5-finger scratch test unit at its automotive headquarters, which is capable of controlled speed testing on interior components. Also offered is a variable-force, variable-speed Erichsen scratch tester preferred by several OEMs. This unit performs cross-hatched scratch tests and is objective in nature, allowing for ∆L values that can be read by a spectrophotometer.
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