How to Remove Paint From Stonework

Written by ryan lawrence | 13/05/2017
How to Remove Paint From Stonework
Use a wire brush. (Hemera Technologies/ Images)

Improper paint stripping techniques can cause permanent damage to relatively sensitive surfaces, such as wood, plastic and vinyl. Fortunately, stonework is durable enough to endure aggressive stripping methods. Before repainting finished stonework, eliminate old, failing paint, or adhesion problems will probably result. If you'd prefer to strip the entire painted finish to expose the bare stonework, utilise a stripping solvent that will ease the removal process. Wear the proper safety equipment when working with harsh solvents, or fume build-up could cause you to experience headaches and nausea.

Free as much paint as possible from exterior stonework using a pressure washer. Use a wide-angle tip, or you may end up damaging the mortar between each stone.

Scrape large sheets of flaking paint form the stonework using a putty knife.

Free paint particles from tight, awkward areas using a durable, abrasive wire brush.

Smooth any remaining stubborn paint particles with 80-grit sandpaper. Fold the paper to fit within the mortar between each stone if necessary.

Wear a protective respirator if you're working on interior stonework. Open windows and doors.

Brush paint stripping solvent onto no more than a 2-by-2-foot portion of the stonework. Wait three minutes before scraping the loosened paint from the surface using a wire brush and 80-grit sandpaper.

Wash off any liquefied paint residue, using steel wool dampened with stripping solvent. Continue until the stonework is free from paint. Wait an hour for the solvent to evaporate from the stones.

Things you need

  • Pressure washer
  • Metal putty knife
  • Wire brush
  • 80-grit sandpaper
  • Respirator
  • Paint stripping solvent
  • 2- to 4-inch natural-bristled paintbrush
  • Steel wool

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