Efflorescence Control Agent for Concrete

ConTec EC-166 is an integral water repellent admixture used in low slump concrete units such as architectural block, paving stones, SRW units, or masonry mortar. ConTec EC-166 contains a unique blend of efflorescence control agents and polycarboxylate cement and pigments dispersion aids. This new and improved primary efflorescence control enhances the color and appeal of all types of concrete products. Use in both mortar and masonry units to reduce water infiltration through masonry walls

Features & Benefits

  • Increases hydrophobic properties and lowers absorption rates
  • Contains high levels of polycarbonate dispersant for strength
  • Impedes the formation of primary and secondary efflorescence
  • Increases product freeze-thaw durability with its unique densifying properties
  • Aids color development and can shorten production cycles
  • Reduces mechanical abrasion in equipment.


ConTec EC-60 can be used in all types of manufactured concrete in which the reduction of efflorescence and water permeability is desirable.

ConTec EC-166



ConTec EC-166 is available in bulk quantities or packaged in totes and drums.


ConTec EC-166 should be stored at temperatures above 40°F (4.5°C). Never allow to freeze.


We recommend the following range of dosage: 8 to 16 US fl. oz. per 100 lb of cement for concrete paving stones and concrete roof tile. For SRW units and other architectural block higher dosage rates may be recommended. Never mix EC-135 with other admixtures before application. Consult your ICT representative to help you determine the proper dosage rate and order of addition for your particular process.


Specific Gravity at 77°F: 1.02
Viscosity at 77°F: cps <300
Weight per gallon: 8.4
Volatile matter (NVM(1)): ~60