--- product_id: 40824609 title: "Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal" brand: "duda energy" price: "B/.148" currency: PAB in_stock: true category: "Duda Energy" url: https://www.desertcart.com.pa/products/40824609-duda-energy-1-quart-950ml-85-food-grade-phosphoric-acid store_origin: PA region: Panama --- # Dilutable Concentrate for Cost Efficiency 85% Food Grade Purity Effective Rust Removal & Metal Etching Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal **Brand:** duda energy **Price:** B/.148 **Availability:** ✅ In Stock ## Summary > ⚡ Transform Rust Into Resilience with Duda Energy! ## Quick Answers - **What is this?** Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal by duda energy - **How much does it cost?** B/.148 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/40824609-duda-energy-1-quart-950ml-85-food-grade-phosphoric-acid) ## Best For - duda energy enthusiasts ## Why This Product - Trusted duda energy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rust Be Gone:** Dissolves rust and leaves a protective phosphate coating to prevent future corrosion—your metal’s new best friend. - • **Purity You Can Trust:** Certified low contaminants (arsenic, cadmium, lead) for safe use in sensitive applications—no compromises on quality. - • **Ultra-Concentrated Power:** 85% food-grade phosphoric acid ensures maximum effectiveness with minimal volume—save money and storage space. - • **Safety First, Results Always:** Handle with care using gloves and eye protection; sealed packaging keeps it secure and ready for your next project. - • **Versatile Industrial Strength:** Perfect for rust removal, metal cleaning, biodiesel processing, and pH adjustment—one bottle, endless uses. ## Overview Duda Energy’s 1 Quart 85% Food Grade Phosphoric Acid is a high-purity, multi-purpose acid concentrate designed for powerful rust removal, metal cleaning, and industrial pH adjustment. Certified to meet Food Chemical Codex standards with minimal contaminants, it offers superior performance and cost efficiency for professionals seeking reliable, versatile solutions. ## Description Buy Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal on desertcart.com ✓ FREE SHIPPING on qualified orders ## Features - 85% Food Grade Phosphoric Acid (H3PO4) – Meets Food Chemical Codex (FCC) specifications - Effective Rust Remover & Metal Cleaner - Dilute to a 25-50% concentration with water and soak rusted metal parts; acid dissolves rust and leaves a phosphate coating that inhibits future rusting - Multi-Purpose FG Acid - Also used in biodiesel processing to treat the glycerin byproduct after methanol extraction, and as a general acidifying/pH-adjusting agent - High Purity, Guaranteed Low Contaminants - Per Certificate of Analysis: <=0.5 ppm arsenic, <=1 ppm cadmium, <=10 ppm fluoride, <=3 ppm lead, min. 85% assay - Handling & Safety - Corrosive liquid; always wear gloves and eye protection when handling or diluting; keep sealed and out of reach of children when not in use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06Y1B82TG | | Best Sellers Rank | #22,909 in Automotive ( See Top 100 in Automotive ) #103 in Care Corrosion & Rust Inhibitors #1,063 in Oils & Fluids #3,672 in Paint, Wall Treatments & Supplies | | Brand | Duda Energy | | Brand Name | Duda Energy | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 239 Reviews | | Item Form | Liquid | | Item Volume | 950 ml | | Item Weight | 3.6 pounds | | Manufacturer | Duda Energy | | Model Number | Fgphos-new | | Number of Items | 1 | | Part Number | Fgphos-new | | Scent | Sour | | Size | 32 Fl Oz (Pack of 1) | | Special Features | Rust Resistant | | Specific Uses For Product | Drain | | Surface Recommendation | Metal | | UPC | 840194133708 | | Unit Count | 32 Fluid Ounces | ## Product Details - **Brand:** Duda Energy - **Item Form:** Liquid - **Item Volume:** 950 ml - **Scent:** Sour - **Specific Uses For Product:** Drain ## Images ![Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal - Image 1](https://m.media-amazon.com/images/I/61cPTRRNZeL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I heard I should use Phosphoric acid to etch grout before applying a sealant. Would this product be good for that?** A: using Phosphoric acid on grout will basically erode or eat away a very fine layer of grout. this opens the pores and gives the grout more bite for the color seal to bond. When grout cures after installation, it gets almost like a skin on the surface from settling, or at least a tighter surface tension. When you hit this with Phosphoric acid, it opens it up and makes it slightly rougher. If you don't color seal, it will make it more prone to staining in the future. It doesn't always need to be done, but it will help the color seal bond. **Q: Can I use this on rusty kitchenware? Like pots and pans,?** A: This can be used as a rust remover. Be sure to use gloves! Great for cleaning residue from metals. **Q: Can I clean the rust from cast iron cooking pans with this? It says it has an inhibitor that remains behind, so I wasn't sure if it would be safe.** A: USE POTATO AND COURSE SALT TO CLEAN CAST IRON. but FIRST !!! PUT IT IN A RED HOT CAMP FIRE COALS AND BURN IT OFF BEST WAY!!! THEN AFTER IT COOLS OFF ENOUGH TO NOT CATCH THE VEG OIL ON FIRE WHEN YOU APPLY IT TO THE CAST IRON. BEST results! you can use charcoal also **Q: I use a bathroom cleaner that contains 3.5% phosphorus acid. Is this product suitable for diluting to 3.5% with water for use as a bathroom cleaner?** A: Yes, diluted phosphoric works well as a lime and hard water deposit remover for concrete, tile, and other stone surfaces. ## Frequently Bought Together - Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal - Viva Doria 100% Pure Citric Acid, Food Grade, Fine Grain, 2 lb (907 g) - 2 Pack pH Test Strips, 160 Strips pH.1-14 Universal pH Test Paper Litmus Test Paper pH Soap Making Testing Strips for Water Wine Saliva Urine Soil Testing Pet Food and Diet pH Monitoring (Sealed Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.pa/products/40824609-duda-energy-1-quart-950ml-85-food-grade-phosphoric-acid](https://www.desertcart.com.pa/products/40824609-duda-energy-1-quart-950ml-85-food-grade-phosphoric-acid) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-10-09*