How to Paint Over Indoor Graffiti

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 sound paint clean down with Zinsser Universal Degreaser and Cleaner 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 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.

Prime all areas of graffiti with one full coat of B-I-N® in accordance with the manufacturer’s instructions. Allow a minimum drying time of 45 minutes in normal drying conditions.

For a water-based, low-odour alternative, prime with B-I-N® AQUA.

Decorate with two full coats of Zinsser PermaWhite® Interior Matt or Satin or Zinsser AllClean® in accordance with the manufacturer’s instructions and drying times.