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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

SB Excel™ Proppants


SB Excel 2

SB Excel™ proppants are a curable resin coated sand available in a 20/40 mesh size. Greenish-brown in color, the SB Excel proppant resin is easily recognizeable on location. One of the advantages of Stress Bond™ technology is proppant pack consolidation only occurs under the correct amount of temperature and stress.

Typical Applications

Fracture treatments:

  • At closure stress up to 8,000 psi [55 MPa]
  • At bottom-hole static temperatures from 160 - 450°F [71 - 232°C]

Technical Advantages and Benefits

  • High conductivity - improved post treatment well production
  • Lower fines generation/migration - high long-term conductivity
  • Proppant flowback control - high production rates/reduced wellbore cleanouts

Typical Properties

Property Standard Value Unit Test Method
Absolute Volume 0.386 [0.0463] cm³/g [gal/lb]
API Mesh Size 20/40
Bulk Density 1.46 [12.2] g/cm³ [lb/gal]
Color greenish-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 frac sand
Median Particle Diameter 0.6384 mm
Particle Size Distribution meets or exceeds API RP 19C
Physical State solid granule
Pipe Fill Factor 0.685 [0.0820] 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
Turbidity < 250 NTU (FTU)


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