Professional-Grade Oxalic Acid Powder in a Convenient 1lb Trial Size CrystalClearlab Oxalic Acid Powder delivers 99.6% pure industrial-grade cleaning power in a compact 1lb bag—perfect for first-time users, small restoration projects, or testing before committing to larger quantities. This versatile wood bleach and rust remover is a trusted solution for DIY enthusiasts and professional contractors tackling tough stains on wood, concrete, metal, and masonry surfaces. Wood Restoration & Deck Cleaning Transform weathered, gray wood back to its natural beauty with this powerful wood brightener and deck cleaner. Our oxalic acid powder effectively removes tannin stains, water marks, and discoloration from decks, fences, siding, outdoor furniture, and timber structures. It's the essential wood stain remover for deck prep before refinishing, staining, or sealing—helping you achieve professional results on wood restoration projects of any size. Rust & Mineral Stain Removal Say goodbye to stubborn rust stains and mineral deposits with this industrial-grade rust remover. Perfect for cleaning concrete driveways, patios, pavement, brick, and masonry surfaces affected by iron stains, oxidation, or hard water buildup. Also works brilliantly on metal tools, stainless steel appliances, and outdoor fixtures—restoring surfaces to their original appearance. Versatile Multi-Surface Cleaner Beyond wood and rust removal, this multi-purpose cleaning solution tackles a wide range of household and professional cleaning challenges. Use it for concrete brightening, patio maintenance, tile stain removal, brick cleaning, and even as a pressure washer additive for enhanced cleaning power. The food-safe 99.6% pure formula ensures consistent, reliable results across all applications. Easy to Use & Store The compact 1lb resealable bag is perfect for small projects and easy storage in workshops, garages, or under sinks—ideal for apartments and homes with limited space. Simply dissolve the powder in warm water according to mixing instructions, apply to the affected surface, let it work its magic, then rinse thoroughly. Always follow proper safety precautions including wearing gloves and eye protection. Why Choose the 1lb Trial Size? Not sure if oxalic acid is right for your project? The 1lb trial size lets you test the product's effectiveness without committing to larger quantities. Perfect for single-room projects, furniture restoration, small deck sections, or first-time users who want to experience professional-grade cleaning power before scaling up. Once you see the results, you'll understand why professionals trust oxalic acid for their toughest cleaning challenges. Trusted by Professionals, Perfect for DIY Whether you're a professional contractor, woodworker, or DIY homeowner, CrystalClearlab Oxalic Acid Powder delivers the industrial-grade performance you need in a convenient, manageable size. Join thousands of satisfied customers who rely on our 99.6% pure formula for wood restoration, rust removal, and multi-surface cleaning projects.