Get floors clean and ready to accept coverings, both indoors and out. Our acid-based etchant is excellent at getting rid of unwanted dirt from bare concrete to provide the very best base for painting. Comes in a 5L bottle.
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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).
|Usage Interior / Exterior||Interior or exterior.|
|Suitable For||Concrete and brickwork.|
|Properties||Ensures excellent bonding of coatings, reduces the alkalinity of concrete, cleans surfaces prior to painting.|
|Coverage||20m² per 5 litres 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.