Oxalic Acid

Overview

About Oxalic Acid

GuardH Oxalic Acid is a high-purity industrial chemical (99.6% pure) widely used for removing rust, stains, and discoloration from various surfaces. Manufactured by GuardH, it comes in powdered form and is especially effective for cleaning metal, wood, stone, and concrete. Unlike many harsh mechanical methods, oxalic acid works chemically, reacting with iron oxide (rust) to form a water-soluble compound that can be easily rinsed away. This makes it ideal for delicate restoration tasks – such as antique tools, wooden furniture, or stained tiles – where preserving the original surface is important.

One of the key advantages of GuardH Oxalic Acid is its versatility. When diluted with water, it becomes a powerful stain remover for rust spots on tiles, tubs, driveways, and even fabrics. In woodworking, it’s used to lighten or “bleach” darkened areas or iron stains caused by nails or water damage. It can also restore weathered or greyed-out wood by removing tannin and mineral stains. On metals, it’s favored for rust treatment, especially in tools, machinery parts, and restoration projects where precision cleaning is required without aggressive abrasion.

However, GuardH Oxalic Acid should be handled with care. It is corrosive and toxic in high concentrations, so personal protective equipment like gloves, safety goggles, and adequate ventilation are essential. After treatment, neutralizing with a baking soda solution and rinsing thoroughly helps ensure safety and long-term stability of the cleaned surface. With correct use, GuardH Oxalic Acid offers a cost-effective, efficient, and reliable solution for both industrial and household cleaning and restoration tasks.

✅ When to Use GuardH Oxalic Acid

• Removing rust from tools, metal hardware, stone, or wood.

• Bleaching wood stains caused by tannin or iron.

• Cleaning off stains from stone, marble, or laundry (e.g., rust/ink).