Purified Terephthalic Acid (PTA)

IUPAC: 1,4-benzenedecarboxylic acid


Eastman™ Purified Terephthalic Acid (PTA) is used to manufacture polyester coatings resins for use in the formulation of general metal, appliance, automotive, industrial maintenance, and coil coatings. The primary application for PTA is in combination with Eastman NPG™ Glycol in polyester powder coating resins. It has also been used in unsaturated polyesters for fiberglass-reinforced plastics applications.


The aromatic ring of PTA imparts excellent hardness and corrosion and stain resistance to coatings resins and unsaturated polyesters. PTA has moderate solubility in molten glycols which can increase synthesis times, and it imparts moderate solubility to resins.


Eastman™ PTA is only available in the United States in bulk quantities.

Acids Applications/usesAdhesives/sealants-B&CArchitectural coatingsAuto OEMAutomotiveCoil coatingsGeneral industrial coatingsGraphic artsIntermediatesPaints & coatingsProtective coatingsWater packagingWind energy Key attributesExcellent weatheringGood chemical and stain resistanceGood hardness/flexibility balanceIdeal glass transition temperature rangeOutstanding powder flow and fluidization characteristics Regulatory information and data sheetsSDS  |  Technical Data Sheet  |  Sales SpecificationProduct availabilityLatin America Eastman Chemical Eastman Chemical Acids,Carboxylic acids Adhesives and sealants,Industrial manufacturing,Paints coatings and inks,Water treatment,Automotive and transportation

  • Brand: : Eastman Chemical
  • Producer/Supplier : Eastman Chemical
  • Chemical Group/INCI : Acids
  • Chemical Category : Acids
  • Sub Category : Carboxylic acids
  • Industry/Applications

    : Adhesives and sealants, Automotive and transportation, Industrial manufacturing, Paints coatings, Water treatment

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