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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

Prime Plus™ Proppants


Prime Plus Product Photo

Prime Plus™ proppants are an advanced, curable resin coated sand available in 16/30, 20/40, 30/50, and 40/70 mesh sizes. These proppants are designed for use in the major basins of North America where premium performance is required. They have a proven track record of delivering the industry's highest performing curable resin coated sand conductivity, resulting in improved well performance.

Typical Applications

Fracture treatments:

At closure stress up to:

  • 10,000 psi [69 MPa] (16/30 and 20/40)
  • 12,000 psi [83 MPa] (30/50 and 40/70)

At bottom-hole static temperatures* from:

  • 130 - 450°F [54 - 232°C] (16/30 and 20/40)
  • 110 - 450°F [43 - 232°C] (30/50 and 40/70)

*Does not require a low temperature consolidation aid down to recommended temperatures.

Technical Advantages and Benefits

  • High conductivity
  • Proppant flowback control
  • Proppant fines reduction
  • Cyclic stress resistance
  • Minimizes proppant embedment
  • Reduces respirable silica dust exposure below PEL limits

Typical Properties

Property Standard Value Unit Test Method
Absolute Volume 0.386 [0.0463], 0.380 [0.0455], 0.385 [0.0461], 0.386 [0.0463] cm³/g [gal/lb]
API Mesh Size 16/30, 20/40, 30/50, 40/70
Bulk Density 1.53 [12.8], 1.47 [12.3], 1.45 [12.1], 1.45 [12.1] g/cm³ [lb/gal]
Color light green
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
Median Particle Diameter 0.4513, 0.2992 mm
Particle Size Distribution meets or exceeds API RP 19C
Physical State solid granule
Pipe Fill Factor 0.653 [0.0782], 0.680 [0.0813], 0.690 [0.0826], 0.690 [0.0826] cm³/g [gal/lb]
Resin Type thermosetting, curable
Solubility in Water, Brine & HCl nil weight %
Solubility in HCl/HF acid, API RP 19C ≤ 3 weight %
Solubility In Oil nil weight %
Specific Gravity 2.59, 2.63, 2.60, 2.59
Turbidity < 250 NTU (FTU)

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