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Flocrete CL50

Block R20

Integral water repellent admixture for blocks and concrete masonry units
  • Reduces capillary water absorption.
  • Minimizes the risk of efflorescence and dirt pick-up.
  • Provides a better color intensity and uniformity.
  • Reduces the growth of algae and fungi on concrete surfaces.
  • Enhances physical properties such as compressive, flexural and tensile strength.
  • Improves the colour shades and thus reduces the needed pigment dosages.
  • Highly alkaline resistant.
  • Provides a better demolding and sharper edges.
  • Reduces chloride diffusion.
  • Improves workability.

Hyperplast Block R20 is a water-based, ready to use integral concrete waterproofing admixture specially designed for use in concrete masonry units and provides easy to use product that imparts water-repellency.

Hyperplast Block R20 also provides manufactured low slump concrete with improved compressive strength and absorption properties, as well as improved “machinability” or ease of manufacturing units.


Hyperplast Block R20 is available in 5 gal (19 litre) containers as well as 275 gal (1,041 litre) and 330 gal (1,249 litre) IBC totes. Bulk supply in tanker trucks is also available upon request.


Hyperplast Block R20 should be stored under cover at a minimum ambient temperature of 41°F (5°C).

Shelf Life

Hyperplast Block R20 has a shelf life of 12 months from date of manufacture if stored in good conditions and sealed drums.


Hyperplast Block R20 is used to provide water repellent concrete masonry units (CMU). The product is used in conjunction with Hyperplast Block M to provide a system of water repelling CMU and mortar offering long lasting resistance to water penetration.

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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