How to Paint Hard Plastic

Written by ryan lawrence
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How to Paint Hard Plastic
Sand hard plastic to encourage adhesion. (sandpapier image by Thomas Aumann from Fotolia.com)

If you would like paint hard plastic surfaces, you must consider some important factors prior to application. Unlike wood, hard plastic is nonporous, making it unable to absorb paint adhesives. This quality will cause plastic to shed new finishes unless it is pretreated with abrasion techniques. Abrasion will create a tooth for new paint to adhere to and will help to prevent future paint failure. You should also choose a particular type of paint based on the location and function of the plastic surface.

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Things you need

  • Dish soap
  • Coarse sponge
  • Rags
  • Palm sander
  • 220-grit sandpaper
  • Blue painter's tape
  • Heavy-duty fabric dust sheets
  • 2- to 4-inch latex paintbrush
  • Acrylic latex primer
  • Acrylic latex paint

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Instructions

  1. 1

    Wash the hard plastic with soap, using a coarse sponge. Rinse the plastic with wet rags. Wait 1-to-3 hours for the plastic to dry.

  2. 2

    Enhance adhesion by sanding the hard plastic, prior to application. Scour the plastic with a 220-grit sandpaper until it feels slightly rough.

  3. 3

    Place fabric dust sheets beneath the plastic to protect the floor. Protect areas running adjacent to the hard plastic with painter's tape.

  4. 4

    Apply an acrylic latex primer to the abraded hard plastic, using a 2- to 4-inch latex paintbrush. Wait 2 hours for the primed plastic to dry.

  5. 5

    Clean the paintbrush with tap water.

  6. 6

    Apply an acrylic latex paint to the primed hard plastic, using the cleaned latex paintbrush. Wait 2 hours for the finished plastic to dry. Add another coat if the primer shows through.

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