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On January 31, 2021, 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

PR6000™ Proppants



PR6000™ proppants are precured resin coated sand available in 16/30, 20/40, 30/50, and 40/70 mesh sizes.  These proppants are a proven procured premium resin coated sand.

Typical Applications

Fracture treatments:

At closure stress up to:

  • 8,000 psi [55 MPa]

Technical Advantages and Benefits

  • High conductivity
  • Proppant fines reduction
  • Reduces respirable silica dust exposure below PEL limits

Typical Properties

Property Standard Value Unit Test Method
Specific Volume 0.384 [0.0460], 0.386 [0.0463], 0.383 [0.0459], 0.386 [0.0463] cm³/g [gal/lb]
API Mesh Size 16/30, 20/40, 30/50, 40/70
Bulk Density 1.60 [13.4], 1.57 [13.1], 1.58 [13.2], 1.43 [11.9] g/cm³ [lb/gal]
Color reddish-brown
Compatibility Fully compatible with most commonly used fracturing fluids, both water and oil-based systems. Testing with fluids prior to pumping is advised.
Composition resin coated, northern white frac sand
Particle Size Distribution meets or exceeds API RP 19C
Physical State solid granule
Pipe Fill Factor 0.624 [0.0748], 0.637 [0.0763], 0.633 [0.0758], 0.699 [0.0838] cm³/g [gal/lb]
Resin Type precured
Solubility in Water, Brine & HCl 0.0 weight %
Solubility in HCl/HF acid, API RP 19C < / = 3 weight %
Solubility In Oil 0.0 weight %
Specific gravity 2.60, 2.59, 2.61, 2.59
Turbidity < 250 NTU (FTU)

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