Oil & Gas Offshore Drilling rig in ocean

Veriflex 551

Copolymeric elastomer for wellbore cement compositions

Chemistry Type: Butadiene and acrylonitrile copolymer

Function(s): Cement Additives

Veriflex 551 reinforcing aid for wellbore cementing enables the formulation of lower density cements with improved compression and flexural strength.

Previously sold as Pliolite CM 35.

Key Advantages

  • Improves compressive and flexural strength (Young's modulus)
  • Lowers cement density - ideal for lightweight slurries
  • Extremely temperature stable at bottomhole circulating temperature (BHCT) up to 260 °C (500 °F)
  • High chemical resistance to well contaminates
  • Readily dispersible polymer powders
  • Recyclable
Off White
Physical Form
Average Particle Size
200-300 µm (D50)
Mooney Viscosity
50 (ML 1+4) @ 100 °C
Specific Gravity
Active Ingredient (by weight)
100 %
Insoluble In
Loading Level
2.5 - 10% BWOC
Partitioned With
Calcium Carbonate

Product Availability

North America, Latin America, China, Asia (excl. China, incl. India), South Pacific, EMEA (Europe, Middle East, Africa)

Contact Us for individual country availability.

Related Documents & Downloads

OMNOVA Chemical Technical Data Sheet
OMNOVA Chemical Regulatory Data Sheet
Locked Content:
Please or Register to view.