ZAR® Deck, Fence and Wood Brightener

ZAR® Deck, Fence and Wood Brightener

ZAR® Deck, Fence and Wood Brightener is a ready-to-use, excellent choice for use on new and uncoated exterior wood decks, fences, wood siding, and composite surfaces.

It does a wonderful job of restoring wood’s natural beauty, removing unsightly tannin stains from cedar and redwood, as well as rust and nail-head stains from most other wood species.

ZAR® Deck, Fence and Wood Brightener Application

Quick Overview

Apply ZAR® Deck, Fence and Wood Brightener after stripping or cleaning to brighten new or uncoated wood prior to applying a new coat of stain.

Product Features:

  • No mixing required
  • Oxalic acid solution
  • Exterior, horizontal and vertical surfaces
  • Sizes: gallon
  • Coverage: up to 250-300 square feet per gallon
  • Application tools: synthetic brush or deep-nap roller, and a synthetic stiff bristle broom or brush


  • Wood decks
  • Wood docks
  • Pool wood decks
  • Wood porches
  • Fences
  • Wood siding
  • Composite surfaces

How To / Videos

Refinishing Your Deck? Prep for Success with 7 Helpful Tips!

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Wear protective eye goggles and waterproof gloves. Spray all vegetation thoroughly with water prior to and after application. Cover any areas you want to protect. Do not allow this product to come in contact with fabric, furniture, metal, or floor covering. Do not mix with bleach or other chemicals. Always test on a small hidden area.


This product comes ready to use. No mixing is necessary. The surface should be swept clean and dry.* On vertical surfaces, such as siding or fences, apply ZAR® Deck, Fence and Wood Cleaner with a synthetic brush or a deep nap roller, working from the bottom to the top. On horizontal surfaces, apply it with a synthetic brush. Work from one end, on 3-5 boards at a time. Allow the product to sit on the surface for 15-20 minutes, keeping it wet with additional product as needed. Scrub the surface with a synthetic stiff bristle broom or brush. You can also use a power washer with a 40-degree tip at low (500-1000 psi) pressure. Make sure to thoroughly rinse the surface when completed. Allow the wood to dry thoroughly before applying a water-based finish, and at least 24 hours before applying an oil-based finish.


Dispose of contaminated absorbent, container and unused contents in accordance with local, state and federal regulations.

USAGE STATEMENT: Prior to use, carefully read the product label and follow the directions. For technical information, warnings, cautions, notices, and additional information, download and read the documentation available on this website.

* WARNING: If you scrape, sand or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or visit