I have been asked to decorate some external concrete cills that have been previously painted with what appears to be oil paint which is now failing in part. Any help on preparation and paint type would be very much appreciated.
Strip it all off with Fluxaf Super and then apply Keim Royalan system. This has been tried and tested on a number of projects i have been involved in eg - Isle of Skye Lighthouse cottage Project
Where can I get the Keim Royalan System. I do have a Brewers in my town.
@BenSturges is the person to see for Keim products.