Application: Brush or roller only. For Health and Safety reasons related to all solvent-based paints, spray is not recommended. SHAKE CONTAINER VIGOROUSLY BEFORE USE. When the surface has been fully prepared any areas that remain powdery and chalky should be sealed with a coat of Weathershield Stabilising Primer. When fully dry apply 2 coats of the selected Weathershield Masonry Paint. Weathershield Stabilising Primer should not be used as a general purpose sealer on normal or sound surfaces (i.e not powdery and chalky after the surface has been thoroughly prepared). New or sound bare surfaces should only be sealed with a thinned first coat of the masonry paint itself.