Grain Processing Corporation
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industrial starch products


textile/laundry

textile/laundry product requests
acid-modified starches
acid-modified starches
ethylated starches
COATMASTER® ethylated starches
laundry starches
IRON MASTER® G342 instant laundry starch
oxidized starches
oxidized starches
pregelatinized starches
pregelatinized starches

Grain Processing Corporation offers a full line of starches for a variety of textile and laundry applications.

  • Acid-Modified Starches
  • Oxidized Starches
  • COATMASTER® Ethylated Starches

GPC’s high-quality starches are the standard for sizing and finishing of textile fabrics.

  • IRON MASTER® G342 Instant Laundry Starch

IRON MASTER® G342 is a proprietary, modified starch-based blend developed to provide maximum starch performance in a laundry application.


COATMASTER® and IRON MASTER® are registered trademarks of Grain Processing Corporation.

industrial news

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  • 12.15.2016
    Grain Processing Corporation receives Energy Efficiency award at 4th Annual Iowa Association of Municipal Utilities Conference
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  • 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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