Hi I want to paint my outdoor, uncovered, concrete patio slabs, a dark grey/near black. What is the best primer to use for this please? And do I need a sealer after the paint has been applied ? Many thanks. Jan
Assuming the concrete slabs are bare, clean, dry, sound and prepared as detailed in the technical Data Sheet we can recommend Coo-Var Acrylic Floor Paint.
No primer or sealer would be required but the slabs should be prepared by acid etching, abrading or grinding.