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Hyperplast PC221


High range water reducing admixture with workability retention properties for hot climates
  • Increased compressive and flexural strength
  • Excellent slump retention
  • Optimizes cement utilization
  • Better durability and impermeable concrete
  • Improves shrinkage and creep behaviors

Hyperplast PC221S is a high range water reducing admixture with slump retaining properties based on polycarboxylic polymers with selective additives which are especially formulated to enable the water content of the concrete to perform in a more effective manner.

This effect can be used in different concrete applications where it is required to keep the water-cement ratio at a minimum level and to maintain both excellent workability and strength performance. 


Hyperplast PC221S is available in 275 gal (1,041 litre) and 330 gal (1,249 litre) IBC totes. Bulk supply in tanker trucks is also available upon request. 

Shelf Life

Hyperplast PC221S has a shelf life of 12 months from date of manufacture if stored at temperatures between 35°F and 122°F (2°C and 50°C).


Hyperplast PC221S complies with ASTM C494, Type D and G, depending on the used dosage.


Hyperplast PC221S can be successfully used in the following applications:

  • Use in concrete where extended slump retention in hot weather is required.
  • Acts as high range water reducer for the production of high strength and high performance concrete.
  • Suitable for normal weight and light weight concrete.
  • In ready-mix, precast and pre-stressed applications.
  • Production of self-levelling concrete.
  • Mass-concrete pours.

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Don Construction Products Inc.

2826 Lineberger Industrial Dr.
Lancaster, SC 29720

Tel: +1 803 286 5430
Fax: +1 803 286 5432

E-mail: info.usa@dcp-int.com