How to paint over water stains (all-in-one method)

All surfaces must be clean, dry and free from anything that will interfere with the adhesion of the materials to be applied. Remove loose and failing material by scraping or brushing with a stiff bristle brush to a sound edge. Feather sound edges with a fine grade abrasive paper. Prior to painting, the moisture content should not exceed 12%. Remove all dust.

In areas with remaining sound paint clean down with Zinsser Universal Cleaner & Degreaser to remove any contaminants. Rinse thoroughly with clean water to remove all residues. Allow to dry.

Remove all visible signs of organic growth and treat the areas with Zinsser Mould Killer & Remover in accordance with the manufacturer’s instructions. Allow to dry. Fill any cracks and small surface defects with a suitable filler as appropriate in accordance with the manufacturer’s instructions. Allow to dry. Rub down with a fine grade abrasive paper. Remove all dust.

Patch prime all bare and filled areas with one coat of Zinsser AllCoat Interior (Solvent Based) in accordance with the manufacturer’s instructions. Allow a minimum drying time of 2 hours in normal drying conditions. Bring forward patch primed areas with AllCoat Interior (Solvent Based). Allow to dry. Prime all areas to be decorated with one full coat of AllCoat Interior (Solvent Based). Allow a minimum drying time of 2 hours in normal drying conditions.

Decorate with one full coat of AllCoat Interior (Solvent Based) in accordance with the manufacturer’s instructions and drying times.