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CS175
Epoxy Primer for Porous Substrates

CS175 is a two part water based epoxy primer.

CS175 Epoxy Primer for Porous Substrates provides a breathable sealer for calcium sulphate screeds.  Additionally, it is suitable for priming new and existing cementitious screeds, concrete, brick and blockwork.  May be used as a low viscosity primer for epoxy paint coatings on prepared power floated concrete.

  • Excellent coverage
  • Low viscosity
  • Consolidates weak surfaces

Preparation

     

  • Surfaces should be clean, firm and free from dust, dirt or other material liable to impair adhesion.
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Application Conditions

     

  • New concrete should be a minimum of 28 days old.
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  • Surface temperatures should be +3°C above the dew point.
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  • Temperatures should be above +5°C at time of application and for 24 hours thereafter.
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  • Do not apply over wet substrates or externally if rain is expected prior to curing.
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  • Where used internally, especially in high humidity conditions, forced ventilation will be required to assist curing.
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  • At lower temperatures and in internal situations, allow a minimum of 24 hours, before overcoating.
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  • If contaminated before installing floor finishes, it will be necessary to sand the surface of the primer and reapply one or two coats as required.
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Mixing

     

  • Add contents of Part A (small bottle) to Part B (large container) and mix thoroughly for a minimum of 2 minutes.
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Application

Concrete and Sand Cement Screeds

     

  • Apply an even continuous coat, which is free of pinholes to the substrate using a fluff free roller.
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  • Take care to prevent the formation of puddles. On smooth impervious substrates, application by squeegee is the most effective way to quickly obtain a uniform film.
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  • Leave the coating to dry to a translucent film (usually 3 to 6 hours depending on substrate, temperature and ventilation). If in doubt, leave overnight.
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  • Once dried, the primed surface is ready for overlaying and must be kept free of contaminants.
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  • If more than 24 hours have elapsed since the application, then a repeat application of the primer may be required.
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Calcium Sulphate Screeds

     

  • Prepare all surfaces by mechanical techniques as recommended by the screed manufacturer to provide a clean, sound, smooth contaminant free surface with a fine texture.
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  • Remove all traces of dust and debris.
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  • Apply 1 or 2 coats of mixed CS175 Epoxy Primer for Porous Substrates (as required) and allow each coat to dry (usually 3 to 6 hours depending on substrate, temperature and ventilation).
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  • Once the calcium sulphate screed is dry (Refer to specific manufacturer’s instructions) Secure the floor covering with the approved TREMCO adhesive.
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Location

UK

Technical data

PROPERTYRESULT
CompositionA two part water based epoxy primer
Pot LifeApproximately 45 minutes
Curing Time (in good drying conditions at +15°C or above)Overnight
Coverage10 m² per kg depending on the substrate and method of application
StorageStore in shaded dry conditions between +10°C and +35°C
Shelf Life12 months when stored as recommended in original unopened containers
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