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On February 1, 2022, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at or

PropTrac℠ Proppants


PropTrac H Product Photo

Hexion's PropTrac℠ Fracture Diagnostics System is an environmentally acceptable method to determine propped fracture height. PropTrac incorporates a non-radioactive tag into the resin coating of proppants. This Smart Proppant™ technology is activated by a logging tool after the proppants have been placed in the fracture. The data received is analyzed to identify the location of the tagged proppant and provide accurate information.


The PropTrac fracture diagnostics service is a simpler, easier, and safer way to optimize fracture treatments and improve treatment results.


The PropTrac service offers the following benefits:

  • Does not use radioactive tracer materials as in conventional tracer jobs
  • No special environmental or safety precautions, permits, or regulatory compliance are necessary
  • Logs can be run as often as desired during the life of the well
  • Proppants with a built-in tagging material  in the resin coating provide more accurate results

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