How to Paint on Slate Plaques

Written by jaimie zinski
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How to Paint on Slate Plaques
Use acrylics when painting directly onto slate. (grey slate image by Barcabloo from

Slate has traditionally been used as a roofing material or as flooring for outdoor and indoor walkways and stairs. Slate plaques can also be used as decorative pieces to adorn almost any area of the home, from a welcome sign outdoors to an homage that represents a cherished pet. Painting slate properly will ensure that the paint adheres to it effectively and that the piece remains vibrant for several years to come.

Skill level:

Things you need

  • Soapy water
  • Kitchen sponge
  • Acrylic paint
  • Paintbrushes
  • Stencil
  • Slate sealant

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  1. 1

    Clean off the slate piece with soapy water and a kitchen sponge. This will prepare the slate to accept the paint more effectively.

  2. 2

    Allow the slate to dry completely.

  3. 3

    Cover the surface of the slate with a coat of acrylic paint. Acrylic will stick to the slate more effectively than water-based paint.

  4. 4

    Allow the paint to dry before adding details to the slate plaque. Apply shapes and designs to the slate freehand or with the help of a stencil.

  5. 5

    Allow the painted designs to dry completely. Apply a thin layer of synthetic slate sealant, which can be purchased at home improvement or hardware stores, with a paintbrush.

  6. 6

    Apply a second coat of sealant, if desired.

Tips and warnings

  • A second coat of acrylic base paint can be applied to the surface of the slate if a single coat is not adequate.

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