--- product_id: 19735235 title: "BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon" brand: "black star" price: "€ 199.45" currency: EUR in_stock: true reviews_count: 8 category: "Black Star" url: https://www.desertcart.pt/products/19735235-black-star-mro-chem-rust-converter-converts-rust-on-any store_origin: PT region: Portugal --- # Acts as a paint primer Transforms rust into polymer resin Seals and prevents re-rusting BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon **Brand:** black star **Price:** € 199.45 **Availability:** ✅ In Stock ## Summary > 🛠️ Stop Rust Cold, Start Finishing Bold! ## Quick Answers - **What is this?** BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon by black star - **How much does it cost?** € 199.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/19735235-black-star-mro-chem-rust-converter-converts-rust-on-any) ## Best For - black star enthusiasts ## Why This Product - Trusted black star brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Term Defense:** Seals out moisture to stop rust from ever coming back, protecting your metal investment. - • **Paint-Ready Finish:** Creates a smooth, semi-gloss primer surface that enhances paint adhesion and vibrancy. - • **Rust to Resilience:** Converts rust into a durable, corrosion-resistant polymer coating—no sanding or scraping needed. - • **Effortless Application:** Spray, brush, or roll on with zero prep hassle—save time and skip the grinding grind. - • **Universal Metal Savior:** Perfect for everything from farm equipment to marine gear—rust doesn’t stand a chance. ## Overview BLACK STAR MRO Chem Rust Converter is a cutting-edge rust treatment that chemically transforms rust into a hard, black polymer resin coating. This coating not only halts further corrosion by sealing out moisture but also serves as a high-quality primer for painting. Designed for versatile use on any steel surface—from vehicles and farm equipment to marine and industrial applications—this 1-gallon solution eliminates the need for sanding or blasting, making rust repair faster and more effective for professionals and enthusiasts alike. ## Description Stop rust in its tracks with Black Star Rust Converter. This advanced formula transforms rust into a slick polymer resin coating that looks incredible on its own or can be easily painted. Best of all, this polymer resin coating is rust-proof, which means you can save your metal equipment while keeping it from further rusting. Whether you have rust on your vehicle, building, roof, fence, tank, trailer, or rust on your equipment, Black Star Rust Converter transforms any iron or steel surface by stopping rust in its tracks. A must-have for farmers, ranchers, automotive shop owners, car enthusiasts, city highway departments, fleet workers, steel workers, workshops, and commercial painters, Black Star Rust Converter is a must have for anyone working with metal and dealing with rust. And it’s so easy to use! Just spray, brush or roll Black Star on and allow the product to do its work. Rust is easily converted into a black, hard, corrosion and abrasion resistant polymer resin coating. No more sanding, scraping, or blasting trying to remove rust—those days are over with Black Star Rust Converter. Review: Rust prevention - Works good.seals rust.saves time less grinding and buffing. Review: This is a great product! I will buy again. Worth the money. - Thickness, warmth, and easy to use, oh well one rating category in 3 is ok! It's easy, its watery (water based coatings can be thin or thick) it isn't a vest - not warm. This product is excellent. Reccomended by a friend with several years on 5 different rod builds. It protects and seals metal i have used the product for several years it just works. Street rod resto work. ## Features - Black Star Rust Converter – No more sanding, blasting, scraping, or etching. Instead, our 21st century technology converts and transforms rust into a slick polymer resin coating. A phenomenal rust treatment, Black Star rust converter stops more rust from forming. - Won’t Re-Rust – After converting your rust into a beautiful, black, hard, corrosion-resistant polymer resin that seals out moisture, the treated rust will never reoxidize. Instead of being just a harsh rust remover, Black Star is also a rust inhibitor and chemically reacts with the rust to convert it into a useful primer or final coating. - Unlimited uses – If it rusts, Black Star goes to work! Used everywhere from oil rigs to farm equipment. From fences, metal roofs, bridges, marine applications and steel sheds to grain bins, cars, trucks, trailers, and tools, rust is simply no match. - Paint primer – Rust is difficult to paint over, and paint won’t stop your metal from re-rusting. Black Star not only acts as a rust converter and stopper, but also is a phenomenal primer for painting your metal and achieving a vivid, smooth color. - Easy to Use – No more difficult rust removing! Instead of damaging the metal trying to remove rust, just spray, brush, or roll on Black Star Rust Converter and improve the integrity of your metal without worrying about stripping, wire wheeling, grinding or sand blasting. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01283DMGA | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #24,743 in Automotive ( See Top 100 in Automotive ) #78 in Care Corrosion & Rust Inhibitors | | Brand | BLACK STAR | | Customer Reviews | 4.4 4.4 out of 5 stars (515) | | Date First Available | July 21, 2015 | | Finish | Semi-Gloss | | Finish Type | Semi-Gloss | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 8 pounds | | Item model number | 5823898652 | | Manufacturer | MRO Chem | | Part Number | BlackStarRustConverter/1gallon | | Product Dimensions | 5.5 x 5.5 x 11.5 inches | | Size | 1 Gallon | | Special Feature | Color Changing, Rust Converter | | Special Features | Color Changing, Rust Converter | | UPC | 193802256024 | | Unit Count | 128.0 Fluid Ounces | ## Product Details - **Brand:** BLACK STAR - **Finish Type:** Semi-Gloss - **Manufacturer:** MRO Chem - **Size:** 1 Gallon - **Special Feature:** Color Changing, Rust Converter - **UPC:** 193802256024 - **Unit Count:** 128.0 Fluid Ounces ## Images ![BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/51CPm6Wge+L.jpg) ## Questions & Answers **Q: what is temperature range black star can be app.** A: Q: What is the optimal temperature at which a Rust Converter should be applied A: Rust Converter should be applied when the air and surface temperature is between 50 and 100 degrees F. Do not apply in direct sunlight or in very damp conditions. **Q: Does this product have to be rinsed after applying before painted?** A: Good Question! Black Star converts all your rust into an inert black polymer resin(kinda like a hard plastic) that can be used as a primer for painting. Overspray that does not come into contact with rust will dry to a waxy film that should be washed off before top coating. However, if you're not repainting surface then you can leave the unconverted overspray on and the environment(rain, snow, wind) will cause it to degrade away. Thank you for your interest in Black Star ! **Q: Is it effective on radiators?** A: If its made of steel and its rust it should work, most automotive radiators are not made of steel as far as I know, probably made of brass, copper or aluminum, (that's "corrosion" most likely not rust) I don't know about a "in the home type" old fashioned cast iron heat radiator though, but if its truly rust that you have I feel it should work just fine. **Q: Can this be top coated with oil based enamel paint?** A: Absolutely. Black Star acts as an excellent primer for any oil based top coat. Great question & thank you for your interest in our products! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Rust prevention *by M***Y on January 10, 2026* Works good.seals rust.saves time less grinding and buffing. ### ⭐⭐⭐⭐⭐ This is a great product! I will buy again. Worth the money. *by M***K on December 21, 2020* Thickness, warmth, and easy to use, oh well one rating category in 3 is ok! It's easy, its watery (water based coatings can be thin or thick) it isn't a vest - not warm. This product is excellent. Reccomended by a friend with several years on 5 different rod builds. It protects and seals metal i have used the product for several years it just works. Street rod resto work. ### ⭐⭐⭐⭐ Easy to use *by D***I on January 3, 2026* This is my first time working with this product application and use is super easy. I will be keeping an eye on this because I'm using it for auto repair on my baby. It dries pretty quickly ## Frequently Bought Together - MRO Chem Black Star Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon - TCP Global Air Rust Proofing and Undercoating Gun with Gauge & Suction Feed Cup, 2 Wands - 22" Long Flexible Extension Wand with Multi-Directional Nozzle - Spray Truck Bed Liner, Rubberized Undercoat - FDC Rust Converter Ultra, Highly Effective Professional Grade Rust Repair Spray (1 Gallon) --- ## 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.pt/products/19735235-black-star-mro-chem-rust-converter-converts-rust-on-any](https://www.desertcart.pt/products/19735235-black-star-mro-chem-rust-converter-converts-rust-on-any) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*