All,
After scraping some loose paint from some rendering there is a noticeable change in surface texture of the concrete render where it does not have any old paint on the surface. The majority of the old paint surface ie 95% sound and does not need to be removed. I somehow need to build back up the surface where the old paint has been scrapped back to concrete so that the final paint coat looks uniform over the old piant and the newly exposed surface.
What kind of filler can I use that won't crack because it will be applied very thinly? Normal exterior white filler seems very soft.
thanks for any help
Davy