How To Safely Clean Plastic Lumber

Plastic lumber requires almost no maintenance, however, occasional cleaning may be needed. This guide details how to properly clean any structure made from plastic boards. 

A Guide To Cleaning Plastic Lumber 

Here are the supplies you will need to safely clean plastic lumber. 

  • Mild Dish Detergent
  • Soft Bristle Brush and/or Soft Sponge
  • Bucket
  • Water

Optional Supplies: 

In some cases, additional cleaning supplies will be needed. 

  • Power Washer
  • Acetone Solvent
  • Penetrating Oil
  • Foam Eraser Sponge
  • Rust Remover
  • Plastic Putty Knife

General Cleaning of Plastic Lumber 

In most instances, cleaning plastic lumber is a simple process. Dirt and debris can be removed by scrubbing the boards with mild dish detergent and water solution and a soft sponge or soft bristle brush. A toothbrush can be used to clean smaller, difficult-to-reach surfaces. 

Rinse the clean lumber with water. 

Can I Use a Power Washer to Clean Plastic Lumber? 

For deeper cleaning, a power washer can be used to clean plastic lumber. However, a power washer used inappropriately can damage plastic boards. Here’s how to safely clean boards using a power washer.

  1. Always use the lightest setting on the power washer, to begin with. 
  2. Never go above 1,500 psi when using a power washer on plastic wood boards. 
  3. Keep the tip of the power washer at least 10-12 inches away from the lumber while in use. 

There are times when additional cleaning measures need to be taken to remove a difficult substance. 

How to Remove Chewing Gum from Plastic Lumber 

To remove chewing gum from plastic lumber, first, coat the gum in penetrating oil. Then, use a plastic putty knife to gently pry the gum from the board. For the remaining particles, an acetone solvent can be used with a soft bristle brush for removal. Be sure to rinse with water. 

How to Remove Iron Rust from Plastic Boards

If rust has come into contact with plastic boards, saturate the area with a rust remover and scrub with a sponge or soft bristle bush. Rinse thoroughly with water.

Removing Marker, Pen, of Difficult Scuffs From Plastic Timber

A foam eraser sponge can be used to remove markings made by markers, pens, or difficult scuffs from plastic boards. Alternatively, penetrating oil can be used to saturate the area first, before scrubbing the area. 

Always test cleaning materials in a small inconspicuous area before cleaning a larger one. 

Questions About Cleaning HDPE Lumber? Contact Plastic Lumber Yard! 

Our team is happy to help you determine the best way to clean your plastic boards. Contact us today by emailing or calling (610) 277-3900.

How To Clean Plastic Lumber