Eporust HQ AS

High build epoxy-polyamide coating

Eporust HQ AS

Two-component epoxy-polyamide primer with excellent corrosion resistance. Applicable, with suitable equipment, up to 200 micron dry film thickness. Recommended as a longterm primer especially for precious metal products (automotive repair, shipbuilding etc). It has excellent adhesion to all metal substrates, hot dip galvanized surfaces, aluminum or other light alloys. This product is suitable for continuous immersion service in fresh or salt water. Can be used as an intermediate or tie coat on inorganic zinc in three- or more layer cycles, allows the application of the topcoat with the "wet on wet" technique with our products of the ISOACRIL K02 or K03 series, and is also overcoatable after long period of time. The chemical resistance is excellent to the common and more frequent aggressive substances: salt solutions, acid or basic (not concentrated) lubricating oils, diesel fuel, detergents, fertilizers. Product suitable for use in painting cycles where the specifications of ISO 12944-5, C5-I environment and durability H are required.

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Product information

Surface preparation

For particularly harsh operating conditions we recommend a white metal blasting (grade Sa3). For less severe conditions an almost white metal (grade Sa 2.5) is enough. A commercial blasting or alternatively a good quality mechanical cleaning are often acceptable. The product must be applied strictly on dry surfaces, clean, perfectly free of oil, grease, dust, moisture or other contaminants.

Applications methods

Spray, brush or roll. Preferred application is airless spray. Brush or roller don't grant an uniform coverage, use these techniques only on retouch or small surfaces.

Applications instructions 


  • Nozzle diameter (mm) 1,8÷2,2
  • Product pressure (Atm) 1,0÷1,7
  • Air pressure 3,5÷5,0 


  • Pressure ratio 28:1

  • Nozzle diameter (inch) 0,015÷0,019

  • Product pressure (Atm) 160,0÷180,0

Technical data

  • Mechanism of hardening Evaporation of the solvent and chemical reaction 
  • Specific weight (kg / l) * 1,348 (±5%) 
  • Volume solids (%) * 56 (±1%) 
  • Medium dry film thickness (microns) 125 
  • Correspondence wet film thickness (microns) 223 
  • Yield to the average or recommended thickness (m2 / kg) * 3,32 
  • Yield to the average or recommended thickness (m2 / lt) * 4,48 
  • Touch dry at 25 ° C (min) 45 
  • Recoat time min. recommended 25 ° C (hours) n.p. 
  • Recoat time max. recommended 25 ° C (months) 8 
  • Hard dry at 25 ° C (days) 8 
  • Recommended application temperature (° C) +8 ~ +40 
  • Maximum operating temperature (° C) 190 
  • Pot life at 25 ° (hours) 6 
  • Mixing ratio by weight 20,5% 
  • Mixing ratio by volume 33% 
  • Thinner 603.0000 
  • Aspect of the film matt 
  • Color RAL 7035 
  • Storage in suitable conditions (months) 12

Additional information

This is a two-component product. Before mixing the two components it is recommended to homogenize the component possibly with agitator and shake vigorously, possibly without opening, the packaging of component b. After mixing and addition of appropriate thinner, agitation should be continued until it became homogeneous. In order to use the correct mix ratio, necessary to obtain the best results, we recommend to catalyse only entire packs. In case you want to use only a portion of the pack, you should equip with adequate precision scale for catalysis by weight and appropriate sized containers for catalysis by volume. The pot life (time of use after catalysis) is significantly reduced by increase of temperature. Ambient temperature has influence on curing time which, under 10° C is extended considerably. Epoxy products are not suitable to use at low temperatures (typically under 5-8° C), except through the use of a specific catalyst (winter grade). The temperature of the surface to be treated must be at least 3° C higher than dew point. If this condition is not met the resulting condensation, not always visible, may easily lead to phenomena of nonadherence. The coating requires a period of 7-15 days at 25° C for complete curing. Carefully remove any accumulated roughness prior to the application of subsequent coats. It is recommended to implement all necessary measures (development of equipment for painting, using any thinner retardant-wetting thinner, position yourself upwind, proper progression of the surfaces to be painted) to prevent the accumulation of dust coating, which often causes inhomogeneity of the film.

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