Solvent Free Epoxy Coating For Drinking Water Retaining Structures


Rockmax Epogard W1 is a two component, solvent free epoxy coating or lining. The cured material provides hard, gloss, smooth and watertight to concrete surfaces with and including abrasion and chemical resistance. It is suitable with potable or drinking water tank. The cured material is non-toxic.


Rockmax Epogard W1 is used for coating and lining concrete or steel surfaces such as waterproofing the internal of drinking water retaining tanks, waste water tanks, sewages, tunnels, reservoirs, retaining walls.


  • Excellent chemical resistance.
  • Excellent abrasion resistance.
  • Hard wearing surface.
  • Corrosion resistance.
  • Waterproof.
  • Food grade and hygienic.
  • Solvent free and non-toxic.
  • Protect moisture movement.
  • Easy for cleaning.
  • Good adhesion to concrete.



    Concrete must be sound, clean and free from oil, grease, wax, cement paste, dust, dirt and any other contaminants. Concrete must be at least 28 days and minimum Compressive strength 25N/mm 2 and minimum tensile strength (pull off) at 1.5 N/mm 2 . The moisture content in concrete must be lower than 6%. The substrate should not have a relative humidity more than 85% at installation period. Total enclosed grinding, high water pressure jet, or scarifying must be employed followed by vacuuming. All holes and voids must be repaired prior to installation. Seal the surface with moisture barrier or modified epoxy cement in case of surface subject to rising damp or moisture movement. Please consult Rockmax for more information.


    Apply Rockmax Epogard P by roller at one coat at approximate coverage rate 0.2 kg/m 2 . Allow the prime coat to dry approximate 4 hours. The difference type of primers must be considered according to substrate conditions.


    Stir base and hardener component separately approximate 10 second. Pour part A and part B together in the bucket and continue mixing for 3 minute until homogeneous. Avoid whipping air into the material. It is recommended that only full units to be used, that all components are thoroughly mixed. We do not recommend using partial kits and reduce or dilute materials.


    Applied Rockmax Epogard W1 by roller or stiff nylon type brush. Allow the first coat dry at approximate 5-6 hours (30ºC) and the second coat must be applied not more than 48 hours after the first coat application. When finished the application protect the coating from water.


    24kg set (A+B). Part A: 18kg and Part B: 6kg.


    Storage in shade and dry condition. Avoid from frost, water, UV, moisture and high temperature.