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Hyperplast Block E65

Block M

Admixture for masonry mortar (Formerly known as Blockadd M)
  • Enhances the bond between the mortar and concrete masonry units.
  • Produces a water repellent mortar throughout the depth of the mortar joint.
  • Improves workability.
  • Minimizes efflorescence at the mortar joint.
  • Chloride-free.

Hyperplast Block M is a liquid mortar admixture specially designed to provide an integral water repellent and bond enhancing admixture for masonry mortar.
Hyperplast Block M improves the workability of the fresh mortar mix and significantly reduces the amount of water absorbed by the hardened masonry mortar.


Hyperplast Block M 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.

Shelf Life

Hyperplast Block M 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 Block M is used to provide moisture control for the mortar used in masonry structures. The product is used in conjunction with Hyperplast Block R range of CMU admixtures 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