Log Cleaning & Prep

Log Cleaning & Prep

Every great stain job starts with clean, properly prepped wood. Dirt, pollen, mildew, mill glaze, and graying all keep stain from bonding — and a finish applied over a dirty surface will fail early no matter how good the product. At Wasatch Timber, we carry the Sashco cleaning and prep products that get bare logs ready to accept stain and look their best.

Clean and Brighten Before You Stain

CPR Log Cleaner & Brightener cleans and brightens bare logs and wood, removes surface dirt and pollen, and kills mold — bringing dull, dirty logs back to life and giving you the clean canvas a quality stain needs. It's the right first step for both new-build prep and routine maintenance washing.

After cleaning — especially following media blasting or power washing — raised wood fuzz can keep a finish from laying down smoothly. Osborn Brushes are the quick, easy way to remove that fuzz and de-gloss the surface, leaving a clean, even profile that's ready for stain.

The Right Prep Sequence

For most projects the order is: clean and brighten the wood, let it dry fully, remove any raised fuzz or mill glaze, then stain. Proper prep is the difference between a finish that lasts years and one that peels in a single season — it's the least glamorous step and the most important.

Frequently Asked Questions

How do I clean logs before staining?
Use a dedicated log cleaner and brightener like CPR to remove dirt, pollen, and mold, then rinse and let the wood dry completely before applying stain.

Do I need to remove old gray wood?
Graying is surface oxidation. A cleaner/brightener removes much of it; heavily weathered or blasted surfaces may also need brushing to remove raised fuzz before staining.

What is an Osborn brush for?
It removes the wood fuzz created by media blasting or power washing and de-glosses the surface so stain adheres evenly.

How long should wood dry before staining?
Wood should be fully dry — moisture content matters for adhesion. Drying time depends on weather and how the wood was cleaned.

Planning a full prep-and-stain project? Get a free quote and we'll help you line up everything you need.