Exterior Surface Prep

Cabot Stains Problem Solver Wood Brightener

Problem Solver® Wood Brightener

Available Finishes
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Quick Facts

  • Brightens and conditions exterior siding, fences and decks
  • Removes extractive tannin bleed and rust stains
  • Available in two convenient formulas-ready-to-use or a value concentrate

Safety Info

CPIC Information

Wood BrightenerEnglish
Wood Brightener Concentrate English

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Solid Color Decking Stain



Cabot® Ready-to-Use Problem Solver® Wood Brightener is formulated to remove unsightly discoloration of wood caused by tannin bleed in extractive wood types such as cedar and redwood. It also removes metal rust stains. This product can be used on all painted, stained and unfinished wood surfaces. When used on weathered wood, it brings back the rich, "new wood" look.


This ready-to-use wood cleaner covers approximately 200 sq. ft. per gallon (3.78 L). Concentrated formula dilutes to cover 1000 sq. ft. per gallon bottle.

Where to Use

Use on exterior wood decks, siding, fences, railings and steps. Can also be used to remove rust stains on all types of coated surfaces.

Preparing Your Surfaces

Test this product first on a small, hidden area to determine its effectiveness. Before you begin your wood brightening project, protect your shrubs and glass surfaces by wetting them down with water and covering them in plastic. Hose off your glass frequently to prevent streaking, and hose off your shrubs when the job is done.


Apply liberally to problem surfaces. Do not apply to hot surfaces. To avoid a non-uniform appearance on vertical surfaces start at the bottom, doing a small section at a time, then continue to the top, making sure to rinse thoroughly. Let set for 15-20 minutes. Stubborn areas may require scrubbing with a stiff bristle brush. If surface begins to dry quickly, lightly mist with water.

Important: Allow cleaned surface to dry completely before staining or painting.

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