How do I resolve blistering of paint on plaster?
Blistering can occur on plaster if you overcoat solvent-based paints such as gloss or eggshell with a conventional emulsion in an area that suffers from high levels of condensation. To resolve the problem, scrape back the blistered paint until you have a firm edge, feather lightly with abrasive paper and dust off. Now spot prime and bring forward any bare areas with Dulux Trade Alkali Resistant Primer. Finally, repaint the surface using a thinned first coat of Dulux Pearlglo Water-based Enamel followed by one or two full coats.
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