Essential for preparing bare concrete ready for painting
Watco Etch & Clean is the ideal way to prepare concrete and brickwork surfaces for painting. It will remove surface laitance and will also neutralise excess alkalinity in new concrete (concrete must be at least 4 weeks old before use).
|Properties||Ensures excellent bonding of coatings, reduces the alkalinity of concrete, cleans surfaces prior to painting.|
|Suitable for||Concrete and brickwork.|
|Interior or Exterior||Interior and exterior.|
|Coverage||20m² per 5L per pack.|
Apply Etch & Clean to a maximum area of 20m² per 5 litres in conjunction with harsh scrubbing by a soft broom or machine and leave for 15 minutes until all frothing stops and the formulation has changed from pink to white/clear. Once the colour change has occurred the surface alkalinity has been fully neutralised.
Flush the area with generous amounts of water to remove all traces of Etch & Clean and allow the area to dry thoroughly before painting. Brush and vacuum the surface to remove loosened particles of laitance. If a fine powdery film can still be easily removed from the surface, more etching with Watco Etch & Clean will be necessary.