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See all Floor coating how-to »

Preparation of New or Weathered Wood

Skill:  Advanced DIY'er

A great looking finish begins with the right start. Following the proper prep procedures will dramatically affect the look and longevity of your finished project.

For Best Results:

For expert guidance on properly preparing your wood surfaces, refer to our how-to steps below.

Make sure to follow all product label instructions.

Suggested Supplies

  • Bucket
  • Broom (Stiff Bristle)
  • Brush (2"-2½")
  • Bucket Grid
  • Chemical Resistant Gloves
  • Drop Cloths
  • Extension Pole
  • Vinyl Gloves
  • Hose
  • High Pressure Nozzle

  • Paint Can Opener
  • Paint Tray
  • Paint Tray Liner
  • Painter's Tape
  • Plastic Sheeting
  • Pressure Washer
  • Protective Apparel
  • Pump Sprayer
  • Rags
  • Roller Cover
  • Roller Frame
  • Stir Stick
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Step 1

Wet surface with water prior to cleaning. Apply cleaning solution liberally with a pump sprayer, mop, brush, or roller. Keep the surface completely wet with the solution for 10-15 minutes.

Step 2

Scrub the surface using a stiff bristle broom or brush. The solution will foam.

Step 3

After scrubbing, thoroughly rinse the surface area with clean water at normal pressure or using a pressure washer at low setting (500-1200 psi).

Step 4

Let surface dry.  Next, lightly sand any loose wood fibers with medium grit sandpaper.


Step 1

For interior wood applications, use BEHR PREMIUM PLUS® All-in-One Primer and Sealer. For exterior wood applications, use BEHR PREMIUM PLUS® Multi-Surface Primer and Sealer.

Step 2

To apply the primer, use a high-quality 3/8 - 1/2" nap roller cover, nylon polyester  brush or airless sprayer. 

Step 3

Stir the primer occasionally. Do not thin if using a roller or brush. If using a sprayer and thinning is required, then thin with up to 1/2 pint of water per gallon of primer. Heavy stains may require two coats.

The primer will dry to touch in 30 minutes and be ready to topcoat in 1 hour. Use the primer when air and surface temperatures are between 50-90 degrees F. Clean up with soap and water.