Oxalic Acid (40 lbs) 99.6% Pure - Metal & Wood Cleaning and Bleaching, Rust Removal (C2H2O4) - Heavy-Duty Pail with Easy-Open Lid

Works way better than I was anticipating. It cleans the Brazilian teak handrails on our deck from nearly black/gray to original brown/red wood. It cleaned and most importantly brightened up the wood so that it could be sealed and varnished for years of beauty.

Mix with hot water to dilute faster

This stuff works on stained log or weathered wood.

Used this to whiten my wooden fence that is 13 years old in conjunction with some wood bleach cleaner and the combination was great making the fence look new again.

Using for cleaning crystals. Works good. Use an amount of this product to dissolve in water for cleaning without yellowing.

good product, fast delivery, good seller

Great for the money. like handy bucket with handle and extra seal.

Very clumped together but works great.