How to Seal Particle Board

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Things You'll Need

  • Safety glasses

  • Measuring tape

  • Circular saw

  • Screwdriver

  • Clear acrylic sealant

  • Paintbrush


Store particle board in a cool, dry place. The Department of Forestry and Natural Resources states, "If stored outside, keep the material off the ground by stacking it on 4-by-4s or similar material, and cover with polyethylene to prevent wetting by rain. Provide good air circulation to prevent condensation under the plastic coating."


Coat all areas of particle board that will be exposed with a clear waterproof layer or waterproofing paint. Failure to do so will result in the board disintegrating over time.

Work in a well-ventilated area.

Particle board is a reconstituted wood product used to some degree in most modern-day construction projects. Though care must be taken to ensure moisture cannot access it, particle board has proved to be a good building material. Proper storage is just as critical as the sealing process. Avoid moisture from rain and condensation to keep particle board strong and intact. Applying a waterproof sealant before installation adds a little time to any construction project, but it guarantees lasting results.

Step 1

Measure all pieces of particle board needed for the project. Mark off the dimensions and cut the boards using a circular saw. Wear safety glasses when cutting this product. It can kick back splinters that will go in the eyes.

Step 2

Apply a coat of clear acrylic sealant to all edges of the boards. Add a layer to any area that might be exposed to moisture. Do this by shaking up the can of sealant, opening the lid with a screwdriver and painting the product onto the wood using a paintbrush. Paint rollers can be used, but they do not penetrate the wood as well.

Step 3

Allow the wood several hours to completely dry. Install the particle board when dry.

references & resources

Claudia Henning

Claudia Henning began her writing career as a "Lake Sun Leader" columnist in 1989. Her experience includes radio and Web writing, where she specializes in construction and home improvement project methods. She has an Associate of Science degree in physics/math from Del Mar College.