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acid-modified starches
SUPERCORE® acid-modified starches
ethylated starches
COATMASTER® ethylated starches
pregelatinized starches
pregelatinized starches

SUPERCORE® acid modified starches and COATMASTER® ethylated starches are used in a variety of gypsum and ceiling tile applications, and are cost-effective binders and extenders.

Grain Processing Corporation’s SUPERCORE® and COATMASTER® modified starches are wet-milled, dent corn-based products which are highly refined and contain essentially no oil, or fiber.


SUPERCORE® and COATMASTER® are registered trademarks of Grain Processing Corporation.

industrial news

  • 5.31.2017
    Grain Processing Corporation Promotes Tyson Kassel
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  • 5.31.2017
    Grain Processing Corporation Hires Tjapko Poppens
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  • 12.15.2016
    Grain Processing Corporation receives Energy Efficiency award at 4th Annual Iowa Association of Municipal Utilities Conference
    [read more]
  • 12.2.2015
    Let GPC Help With All Your Corrugated Needs…
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  • 5.7.2015
    GPC's New Dryer House is Operational
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  • 4.2.2014
    Grain Processing Corporation Awarded Lab Accreditation
    [read more]

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