Messmer's Wood & Deck Cleaner + Brightener (2-Step System)

Messmer's two-part cleaning system for preparing weathered, grey, or dirty wood before staining with UV Plus or UV Plus for Hardwoods. Part A lifts dirt, mildew, and old finish residue; Part B brightens and neutralizes the wood, restoring pH balance so stain penetrates and adheres properly.

• Recommended prep step before any Messmer's stain application
• Removes grey, weathered wood colour and restores natural tone
• Powder concentrate — mix with water on site
• Essential for previously stained/treated wood and new redwood (age 6–8 weeks, then clean before staining)

How to Use

1. Sweep debris off the wood surface.
2. Dissolve about 1/3 cup of Part A (Cleaner) per gallon of hot water in a plastic bucket. Apply with a garden sprayer, mop, or plastic-bristle brush; let it soak briefly, agitate with a stiff brush, then rinse thoroughly.
3. Mix Part B (Brightener) the same way and apply to the cleaned, wet wood. Let it dwell 10–15 minutes, then rinse thoroughly. Flood surrounding vegetation with water immediately after rinsing.
4. Allow the wood to dry 24–48 hours before applying any Messmer's stain (Brightener can go on immediately after rinsing Cleaner — no wait needed between the two steps).

Specifications

• Form: Powder concentrate, mixed with water on site — sold in 1 lb jars
• Coverage: Up to 600 sq ft per pound when mixed — tougher jobs may need a second application or a stronger mix
• VOC: 0 g/L (both parts)
• Active ingredients: Part A — sodium percarbonate; Part B — oxalic acid
• Dry Time: 24–48 hours after cleaning/brightening before staining
• Caution: Do not let either product dwell on unpainted aluminum or steel — can cause corrosion

Full technical data sheet available for download above.