Others in this category
  • Berger Epilux Low Sheen Concrete Primer
  • Berger Tuff  Alkali Resistent Matt Finish Primer
  • Berger Weathercoat StoneShield Matt Finish Low VOC Wall Primer
  • Berger Weathercoat Vintage Alkali Resistant Exterior Wall Primer
  • Berger Weathercoat Flex Water Based Acrylic Wall Primer
  • Berger Weathercoat Acrylic Co-polymer Exterior Wall Primer

Weathercoat Flex Primer

An environment-friendly, water-based 100% acrylic sealer that works well under Weathercoat’s elastomeric coatings.

Weathercoat Flex Primer is a water-based acrylic sealer with excellent penetration and adhesion to concrete, brick and plastered surfaces. Its excellent alkali resistance, durability and low toxicity make it the ideal choice.


Low toxicity and odourHigh alkali resistanceOutstanding durability
Finishes -Matt

Surface preparation Clean the surface thoroughly. Make sure it is dry and free of all dust, contaminants and fungal growth. Remove laitance (accumulation of particles on fresh concrete) with a wire brush or sweep blast. Previous coatings must be removed completely. Treat fungal growth with Berger Fungicidal Solution. 

Application procedure Before applying Weathercoat Flex Primer, stir the contents thoroughly. Ensure that the outside temperature is 30oC and that relative humidity is not greater than 85%. Apply evenly while avoiding runs and sags.

Tools you will need


Available Packs

Berger Weathercoat Flex Water Based Acrylic Wall Primer
18 Ltr

1 Coat
7.0 m2/Ltr**


On well-prepared surfaces, as per the painting system recommended. Please refer to the Product Data Sheet for surface preparation and method of application.

** Actual coverage may vary from the quoted coverage due to factors such as method and condition of application, surface roughness, and porosity.

Volume Solids

35% +/- 2%
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