How to Paint OSB Particle Board Flooring

Written by mason howard
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How to Paint OSB Particle Board Flooring
Add a coat of paint to transform a particle board floor. (Liquidlibrary/liquidlibrary/Getty Images)

If you have recently pulled up some old flooring such as carpeting or linoleum and found sound OSB particle board subflooring underneath, consider painting the wood as a way to refinish the floor. Painting particle board is economical and easy, and it can produce impeccable results, even for the novice do-it-yourself enthusiast. Particle board already has a distinctive, mottled texture, but for further embellishment or decorative styling you can also paint patterns or faux textures.

Skill level:
Moderately Easy

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Things you need

  • Hammer
  • Staples
  • Adhesive remover
  • Putty knife
  • Sponge
  • Dish soap
  • Broom
  • Vacuum
  • Plastic wood filler
  • Primer
  • Paint roller with long handle
  • Paint
  • Urethane
  • Buffer with 180-grit sanding pad

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  1. 1

    Remove any old nails from the particle board with a hammer. Pry up staples with a flathead screwdriver.

  2. 2

    Coat remaining bits of stuck-on adhesive with spray-on adhesive remover. Allow the adhesive remover to soften the adhesive, then scrape it away with a putty knife. Wipe away the residual adhesive remover with a sponge dipped in a solution of hot water and dish soap.

  3. 3

    Sweep and vacuum all dirt, dust and loose debris from the surface of the particle board.

  4. 4

    Fill any cracks or holes with plastic-based wood filler, smoothing it at the surface of the particle board with a putty knife. Allow the wood filler to cure.

  5. 5

    Protect surrounding surfaces using painter's tape and masking paper.

  6. 6

    Paint the particle board with a coat of primer, using a roller with a long brush. Allow the primer to dry.

  7. 7

    Paint the particle board with two coats of paint. For a single colour, use the roller. When making painted patterns or effects, use paintbrushes, stencils, sticks, sponges and other implements. Let the paint dry.

  8. 8

    Coat the painted surface with three coats of non-yellowing urethane to provide a durable finish that is resistant to foot traffic. Sand lightly between each coat, using a buffer with a 180-grit sandpaper.

Tips and warnings

  • Apply a single fresh coat of urethane every two years.
  • Ventilate the space by opening windows and using fans when working with paint and urethane.

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