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Bio-Wash Industrial Woodwash Weathered Wood Restorer

  • Bio-Wash Industrial Woodwash Weathered Wood Restorer
40.00 LBS
Calculated at checkout

Product Description

Quickly restores outdoor weathered and heavily greyed wood surfaces. Woodwash™ will remove grey wood fiber,stains, tannin bleeding, water stains, mildew, mold and discoloured surface fiber from decks, fences, wood siding and log homes. Use Woodwash™ to restore wood to its natural colour and prepare its surface for re-coating.

Specs - Industrial Woodwash Weathered Wood Restorer

Appearance: Clear Blue Liquid
Specific Gravity: 1.01
Boiling Point: 212°F 32°C
Freezing Point: 32°F 0°C
Sizes: 3.8L, 1 USG
pH: >13.0
Flash Point: N/D
VOC Content: 0 g/L
Viscosity: N/A
Shelf Life: 24 months
Coverage: 100 - 200 sq.ft./USG.
(theoretical): 10 - 20 sq.m./3.8 L

Features & Benefits

  • Water-based formula
  • Removes gray wood fiber, water stains, mildew and mold
  • Rejuvenates wood by removing deteriorated fibers
  • Safe on treated lumber and exotic wood
  • Safe for use around surrounding vegetation if pre-wetted prior to application


  • Contains no bleach
  • Water rinse clean-up
  • Biodegradable
  • Easy to use
  • Available in 5 gallon size with concentrated formula

Typical Uses

BIO-WASH™ Woodwash™ has been proven to effectively remove gray weathered wood, mold, mildew, tannin bleeding and water stains.

If used according to directions, this waterbased formula will not harm surrounding vegetation and is quick and easy to clean up.

  • Wood Decks
  • Fences
  • Railings
  • Siding
  • Log homes
  • Cedar shakes
  • Gazebos


Wood surface must be dry and above 10°C (50°F). Prewet surrounding vegetation with water.

Residue from rinsing will not harm plants.

Test Patch

Conduct a small test patch in an inconspicuous area to ensure product performance.

Application Procedure

Apply Woodwash™ liberally with a garden sprayer or synthetic brush. Saturate wood surface with Woodwash™, then wait 5 minutes.

Scrub lightly in direction of grain with a stiff synthetic brush while rinsing with water.

Rinse in direction of wood grain with a garden hose or pressure washer at low setting (500-1200 PSI) to reduce scrubbing. If brightening is required, use Simple Wash™ prior to applying Stain Prep™.

Wood can be protected same day with damp wood-friendly Natural Deck Oil™.


10 20 sq.m. per 3.8L (100 to 200 sq.ft. per US gallon).


Woodwash™ works on contact. Rinse wood well with water after applying Woodwash™.

Application Tips

Woodwash™ is for outdoor weathered wood surfaces.

Some dilution with water for lightly grayed wood is possible.

Heavily weathered wood surfaces may look fibrous after rinsing Woodwash™.

Immediately brushing along the wood grain helps remove the loose fiber. Wood rich in tannin may darken during restoration. If this occurs, Simple Wash™ can be used to re-brighten wood.

Stain Prep™ should be used to balance the pH of the wood surface before re-coating. The result will be a longer lasting, even and natural looking finish.


Dispose of remaining product in accordance with applicable environmental regulations.

Neutralise with diluted acid, Simple Wash™) or citric acid (vinegar).

Clean Up

Clean up tools immediately with tap water.


Treated surfaces are extremely slippery. Woodwash™ may harm bare metal or painted surfaces. Keep product from freezing.

Handle with care. When spraying wear a NIOSH/MSHA approved respirator.


MAY IRRITATE EYES AND SKIN. Do not mix with toilet bowl cleaner or bleach. Do not swallow.

Do not get in eyes or on skin or clothing. Wear rubber gloves and safety glasses.


First Aid

Contains less than 5% Sodium Hydroxide (CAS# 1310-73-2).

If swallowed, do not induce vomiting. Get medical aid immediately. If in eyes or on skin, rinse well with water for 15 to 20 minutes. If on clothing, remove clothes. If inhaled, move person to fresh air.

To clean painted or stained wood use SIMPLE WASH™. If wood stain and wood paint removal is required use STRIPEX™, or STRIPEX™-L.

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