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How to Paint Over Sig Koverall

Sig Koverall is a cloth skin you use to cover the framework of a model aircraft. It is important to know the procedure for painting over the installed Koverall to prevent the paint finish from peeling over time. Sig Koverall is a lightweight version of the cloth type used for full-sized aircraft and provides an uncoated finish for painting. The painting procedure requires the correct primer and paint applications to complete the project successfully.

Things You'll Need

  • Hand brush
  • Fine painter's tape
  • Clear nitrate dope
  • Dope thinner
  • Bucket
  • Paintbrush
  • 1,000-grit sandpaper
  • Fuel-proof epoxy enamel primer
  • Fuel-proof epoxy enamel paint
  • Respirator
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Instructions

    • 1

      Make sure the Sig Koverall is dry before performing the painting procedure so that the sealing primer adheres effectively. Clean the Koverall of any dust using a hand brush.

    • 2

      Mask all areas on the model aircraft without Sig Koverall using a fine painter's tape. Mix two parts of clear nitrate dope to one part of dope thinner in a bucket.

    • 3

      Apply the diluted dope over the Koverall in a thin coat, using a paintbrush. Allow the surface to dry. Sand the Koverall lightly with 1,000-grit sandpaper. Apply a second coat and sand lightly when dry.

    • 4

      Shake the can of fuel-proof epoxy enamel primer to amalgamate the mixture. Spray a thin and even coat of primer over the Sig Koverall. Allow the primer to dry, and sand the surface as you did before.

    • 5

      Apply the primer in thin coats, sanding between each coat until the Sig Koverall weave is full. Expect to apply a minimum of three primer coats. Sand the final coat lightly with 1,000-grit sandpaper.

    • 6

      Shake the can of fuel-proof epoxy enamel paint to stir the mixture to a uniform color. Spray thin coats of paint over the Sig Koverall in the same way as you did with the paint primer. Sand between each layer when dry and leave the final coat unsanded.


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