Oxalic Acid comes in a powder form and can be mixed with water to perform several purposes. We recommend using a mallet to break down any clumps, mix initially with warm water then fill remainder of mix with cold water. In the washing industry we typically use it for:
Wood Brightening, Rust Removal, Fertilizer Stains (as seen in pics below), Neutralizing after using Sodium Hypochlorite & also for Concrete Brightening.
Recommended Ratios:
Concrete Brightening & Rust Removal - Great results can happen at ratios as low as 1oz by weight (1/4 cup) per gallon for concrete brightening. For Rust & Fertilizer Stain Removal dissolve 9oz by weight (1 1/2 cups) per gallon with multiple applications if necessary.
Wood Brightening & Neutralizing - Dissolve 3oz by weight (1/2 cup) per gallon and let dwell for 5 to 10 minutes or until desired brightness is achieved. For Downstream Injection dissolve 9oz by weight (1 1/2 cups) per gallon with a dwell time of up to 15 minutes or until desired brightness is achieved. For X-Jetting, dissolve 5oz by weight (3/4 cup) per gallon with a dwell time of up to 15 minutes or until desired brightness is achieved.
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Download SDS sheet HERE
SKU: OXALICACID03-6