Retarder (HT)

BR-21L (High Temperature Retarder)

Product Information

BR-20L

Description

BR-21L is an proprietary blend of organic salts. When mixed with cement it will absorb into the cement particles and chelate the calcium ions retarding formation on CSH gels. This process will continue until all BR-21L is spent thus retarding the hydration process.

BR-21L is a liquid retarder designed for use within the temperature (BHCT) range of 194°F to 302°F. BR-21L has a slight dispersive action with most cements, which results in some thinning of cement slurry. Due to this, better fluid loss control is generally obtained.

BR-21L can be used as a retarder with slurries prepared with either fresh water or sea water, it is compatible with BMS’s cementing product line.

 

Advantages

  • BR-21L retarder is low in viscosity and is easy to use.
  • Dispersion of BR-21L retarder is simple and uniform in all cement mixing water.
  • BR-21L retarder stands up to minor variations in cement chemistry and gives reproducible results.
  • An effective retarder, BR-21L additive also serves as a slurry dispersing agent.