DEFY Wood Brightener is a liquid concentrate that is mixed with water to brighten and restore the natural beauty of all species of exterior wood. Product removes tannin and rust stains and is safe to use on redwood. DEFY Wood Brightener will not harm wood fibers, glass, or most plants when used properly. DEFY Wood Brightener is recommended for surface preparation prior to initial application of semi-transparent finishes and stains. Product can be used as a cleaner and brightener for redwood, or as a neutralizer to further brighten wood species, like pine, that have been cleaned with DEFY Wood Cleaner. For lasting protection of your exterior wood, after using DEFY Wood Brightener, treat the surface with DEFY Wood Stains.


STEP 1: MIX: Shake DEFY Wood Brightener to thoroughly mix. Dilute 1 part DEFY Wood Brightener to 4 parts water in a plastic container and mix well.

STEP 2: APPLY: Thoroughly wet surface and ALL surrounding vegetation with water before application. Apply DEFY Wood Brightener solution to wet wood with sprayer, brush or mop and scrub moderately with a stiff brush, working on small areas (20 - 30 sq. ft.) at a time. Note: Scrubbing is unnecessary if used after cleaning wood with DEFY Wood Cleaner. Let solution stand for 3 - 5 minutes, keeping wet with additional solution if necessary. On vertical surfaces begin applying solution at the bottom and work to the top. Application may be repeated if desired.

STEP 3: RINSE: Rinse wood and all surrounding vegetation thoroughly by flooding area with water from garden hose. Rinse vertical surfaces from bottom up to avoid streaking. Heavily weathered or soiled areas may need to be scrubbed with undiluted DEFY Wood Brightener and rinsed again.

COVERAGE: Each gallon of diluted brightener covers 100-200 sq. ft. depending on wood texture and porosity.

CLEAN UP: Clean tools and equipment immediately after each use with soap and water.


DANGER! Causes severe skin burns and eye damage. Harmful if swallowed. Keep out of reach of children. Do not take internally. Avoid contact with eyes and skin. Causes permanent damage to the cornea, iris, or conjunctiva. Avoid breathing mist. Close container tightly after each use. Do not re-use containers. Store only in original container. The use of chemical splash goggles and rubber gloves is recommended when handling this product. Accumulation of product on ladders, scaffolding, decks, etc. may result in a slippery surface. Contains oxalic acid. Do not mix DEFY Wood Brightener with DEFY Wood Cleaner, chlorine bleach, or other chemicals.


If inhaled: Ensure fresh air breathing. Allow the victim to rest. In case of breathing difficulties, administer oxygen. Seek medical attention immediately. If swallowed: Rinse mouth with water (only if the person is conscious). Do NOT induce vomiting unless directed to do so by medical personnel. Immediately call a POISON CENTER or doctor/physician. Obtain emergency medical attention. For skin contact: Rinse using water. Remove contaminated clothes. Wash skin thoroughly with mild soap and water. If skin irritation persists, seek medical attention. For eye contact: Immediately flush eyes thoroughly with water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Seek medical attention immediately. For additional information for this product, consult the Safety Data Sheet available at