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Technical Data Sheet

 Black Ultra


Black Ultra™

Ultra Low Temperature Resin Coated Sand with Stress Bond™ Technology



Black Ultra™ proppant, available in 16/30, 20/40, and 30/50 mesh sizes, is a next-generation resin coated proppant utilizing a multi-functional resin system, which bonds at low temperatures without the use of a consolidation aid. In addition, the resin alters the relative permeability of the proppant pack, leading to optimized oil production. It also contains re-healing properties, important for cyclic stress that occurs over the life of the well. In addition to these features, the Black Ultra proppant Stress Bond™ technology delivers all the benefits of a curable resin coated proppant, such as flowback control and enhanced well production.



Fracture treatments:   

  • At closure stress up to 8,000 psi [55 MPa] (16/30 and 20/40) and 10,000 psi [69 MPa] (30/50) 
  • At bottom-hole static temperatures from 90 - 160°F [32 - 71°C]
  • Where flowback control is necessary in low temperature reservoirs


  • Low temperature bonding down to 90°F [32°C] bottom-hole static temperature without the use of a low temperature consolidation aid
  • Resin re-healing characteristics 
  • Minimizes proppant embedment
  • Reduces proppant fines generation and migration
  • Helps prevent proppant flowback
  • Stress Bond technology helps prevent wellbore consolidation
  • Frac fluid and beaker friendly


  • Grain-to-grain contact must occur and closure stress must be applied during the cure period for proper bonding
  • Consolidation of curable product at bottom-hole static temperatures below 90°F [32°C] is achieved by use of Hexion's AcTivator™ low temperature consolidation aid

Chemical Properties



resin coated frac sand

Resin Type

thermosetting, curable

Color greenish-black to black

Solubility, weight %


in water, brine & HCl


in HCl/HF acid, API RP 19C

≤ 0.3

in oil



Fully compatible with most commonly used fracturing fluids, both water and oil-based systems. Testing with fluids prior to pumping is advised.

Physical Properties


API Mesh Size

16/30, 20/40, 30/50

Physical State

solid granule

Specific Gravity

2.59, 2.61, 2.59

Bulk Density


g/cm3 [lb/gal]

1.46 [12.2], 1.53 [12.8], 1.48 [12.4]

Pipe Fill Factor


cm3/g [gal/lb]

0.685 [0.0821], 0.654 [0.0784], 0.676 [0.0810] 

Absolute Volume  
cm3/g [gal/lb]

0.386 [0.0463], 0.383 [0.0439], 0.386 [0.0463] 

Median Particle Diameter (mm)      0.7660, 0.5775, 0.3825

Particle Size Distribution

meets or exceeds API RP 19C

Turbidity, NTU (FTU)

< 250




Contact Information


Oilfield Technology Group

15366 Park Row  

Houston, Texas 77084 USA

+1 281 646 2800

Customer Service 

+1 800 626 2116

Technical Inquiries


® and ™ Licensed trademarks of Hexion Inc.


The information provided herein was believed by Hexion Inc. (“Hexion”) to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of the product and to determine the suitability of the product for its intended use. All products supplied by Hexion are subject to Hexion’s terms and conditions of sale. HEXION MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY HEXION, except that the product shall conform to Hexion’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

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