Will Parging mix stick to painted block? Alta Exterior Ltd

If parging has been painted, the paint must be chipped off or removed before

Parging mix is used to adhere stone or stone veneer to itself or to another surface. … When parging mix is applied directly over paint or sealers, it forms a bond with the paint or sealer, not with the surface underneath. This can cause the parging mix to fall away over time.