Flocrete Grout UW
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Hyperplast Block M


Antiwash admixture system for underwater concrete
  • Higher concrete strength in the underwater concrete applications by significant minimizing the washout of cement particles. 
  • Improve workability by reducing placing and compaction problems.
  • Minimizing segregation and bleeding problems by improving cohesion.
  • More durable concrete as a result of reduction in permeability and lower water to cement ratio.

Flocrete Anti-Wash is concrete admixture formulated from selected polymers specially designed to produce more cohesive grouting and concrete mixes. It surrounds the cement particles by gel action to minimise the washout in the underwater cementitious applications.


Flocrete Anti-Wash is available in 22 lb (10 kg) bags.


The recommended dosage of Flocrete Anti-Wash is 0.25 - 1.0 % of cementitious materials weight in the mix, including GGBFS, PFA or microsilica.
Representative trials should be conducted to determine the op􀆟 mum dosage of Flocrete Anti-Wash to meet the performance requirements by using the materials and conditions in actual use.

Shelf Life

Flocrete Anti-Wash has a shelf life of 12 months from date of manufacture if stored unopen in its sealed bags protected from moisture.


  • Underwater concrete applications. 
  • Foundations and piles where high water table occurs.
  • To produce cohesive concrete mixes.
  • Fluid grouting that may have subject to washout.


Flocrete Anti-Wash can be used with all types of Portland cement and cement replacement materials. Flocrete Anti-Wash is compatible with DCP concrete admixtures used in the same concrete mix.
In case of other types of admixtures have to be used, contact DCP technical department for more advice.

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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