Oxalic Acid Powder –
Cleaner for grey-blue stains on wooden decks | 40 g

Reliable & effective

Oxalic acid powder is a high-quality cleaner for removing grey-blue discoloration on wooden decks. Especially tannin-rich woods react sensitively to contact with iron, which can lead to unsightly grey-blue stains. Our oxalic acid cleaner can remove these discolorations quickly and effectively. 40 g of powder mixed yields 1 liter of ready-to-use cleaner.

Features & Benefits

• Targeted effect: Removes grey-blue stains on tannin-rich woods
• Easy to use: 40 g of powder yields 1 liter of ready-to-use cleaner
• Efficient: Gently and reliably dissolves discoloration caused by iron contact
• High-quality: Powder for producing a concentrated cleaner
• For outdoor areas: Ideal for wooden decks, furniture, or fences

Areas of application

• Wooden decks: For removing iron stains and grey weathering
• Tannin-rich woods: Sensitive species like oak or robinia
• Outdoor wood care: For a uniform, natural wood appearance

Processing

• Preparation: Dissolve 40 g of powder in 1 liter of water
• Application: Apply evenly to the affected wood surfaces
• Soaking time: Allow to soak briefly until discoloration is visibly dissolved
• Rinse: Rinse thoroughly with water
• Optional: Afterward, let the wood dry and, if necessary, re-treat

The oxalic acid cleaner reliably removes grey-blue stains and restores the natural wood appearance of your deck – simple, effective, and professional.