--- product_id: 663084920 title: "8oz Birchwood Presto Black STEEL PC9 Technologies - blackening concentrate" brand: "birchwood" price: "R999" currency: ZAR in_stock: true reviews_count: 8 category: "Birchwood" url: https://www.desertcart.co.za/products/663084920-8oz-birchwood-presto-black-steel-pc9-technologies-blackening-concentrate store_origin: ZA region: South Africa --- # 8oz concentrate, mix ratios vary Instant blackening on clean steel 50-150 sq ft/gal coverage 8oz Birchwood Presto Black STEEL PC9 Technologies - blackening concentrate **Brand:** birchwood **Price:** R999 **Availability:** ✅ In Stock ## Summary > 🖤 Blacken Boldly, Finish Flawlessly! ## Quick Answers - **What is this?** 8oz Birchwood Presto Black STEEL PC9 Technologies - blackening concentrate by birchwood - **How much does it cost?** R999 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/663084920-8oz-birchwood-presto-black-steel-pc9-technologies-blackening-concentrate) ## Best For - birchwood enthusiasts ## Why This Product - Trusted birchwood brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seal for Longevity:** Compatible with all sealants—oil, wax, lacquer—to protect your flawless finish from rust. - • **Trusted Heritage Brand:** Birchwood, a go-to for architects and artists since 1948, ensures professional-grade quality. - • **Rapid Deep Black Finish:** Transforms steel & iron surfaces with a rich, vibrant black patina in minutes. - • **Customizable Concentration:** Adjust mix ratios from 10% to full strength for faster or more intense blackening. - • **Versatile Application Methods:** Use immersion, brush-on, swab, or spray techniques for custom finishes and artistic effects. ## Overview Birchwood Presto Black STEEL PC9 is a fast-acting blackening concentrate designed for steel, iron, and cast iron surfaces. Offering versatile application methods and customizable dilution, it delivers a deep, uniform black patina favored by professionals since 1948. While it instantly transforms metal aesthetics, sealing is essential to prevent rust, making it perfect for architectural, industrial, and artistic projects. ## Description desertcart.com: Birchwood Presto Black STEEL PC9 - versatile blackening solution for iron and steel alloys traditional patina blue and black oxide touch-up (8 oz) : Everything Else Review: works great! - tarnishes steel beautifully. very happy with how it turned out. I sealed it with satin lacquer and my sculpture looks incredible. super easy to use and kinda hard to mess up Review: Don’t blink, this stuff works fast and good! - Dang, this stuff works so fast you better not blink!! The beauty ring bolts in my bronco were kind of messed up from removing a couple times so bare metal was showing through the black. I poured some of this stuff on a bowl, dropped the button head torx bolts in and Shazam! No more silver was showing. Incredible. They look fantastic. One difference from the stock bolts is these come out with a matte black finish while the OEM Ford bolts have a shine on the black. I waxed these baby’s up and they look very, very close to the stock ones. Nobody would ever know. I got so punch happy I took my eyeglasses apart and threw the frames in but no go, this stuff only works in steel not aluminum. Oh well, can’t win ‘em all. This stuff works really well, if you need to blacken some steel hardware…get you some! ## Features - Achieve a deep blue/black finish on all iron and non-stainless steels with Presto Black STEEL PC9. Sold as a concentrate, can be mixed 50/50 with water for brush-on applications and 10% in water for immersion. Mix at stronger concentrations for faster blackening or for difficult to blacken surfaces. - Creates a rich, vibrant black patina. Ideal for use on a variety of ferrous metals, including steel, iron, and cast iron. Does not blacken Stainless steels - Made in the USA: Birchwood is the trusted name used by Architects, Artists and Industry since 1948 - Artistic techniques allow for customization and unique patterns and designs. Can be applied by immersion, swab-on, or spray methods. Highlighting after will produce a pleasing distressed appearance. Wear appropriate PPE, to avoid irritation to skin, eyes and respiratory system. Gloves and safety glasses are recommended. Respiratory protection may be required if spraying the product produces a mist in work area. - Easy-to-use and fast-acting formula. Black color starts developing instantly on clean steel surfaces! Small projects are completed in minutes. Similar to cold blue process. - IMPORTANT: Coating itself DOES NOT protect the steel from rusting. If you do not immediately dry and seal it is prone to flash rusting. Seal with appropriate topcoat for end use. The black surface conversion is compatible with all sealants: oil, wax, clear coat, lacquers, etc. Combine with a metal cleaner and rust preventative to make a DIY black oxide kit. - Introducing Birchwood Technologies Presto Black STEEL PC9, the ultimate solution for achieving a deep black finish on ferrous materials. This high-quality black patina coating creates a smooth, uniform black finish . It's perfect for use on a variety of ferrous metals, including steel, iron, and cast iron, and is ideal for architectural, industrial, and touch-up applications. Black metal polish. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DFRCBLRZ | | Age Range Description | Adult | | Best Sellers Rank | #33,262 in Automotive ( See Top 100 in Automotive ) #118 in Care Corrosion & Rust Inhibitors #1,350 in Oils & Fluids | | Brand | Birchwood | | Brand Name | Birchwood | | Color | Black | | Color Code | #000000 | | Container Type | Bottle | | Coverage | 100-150 sq ft/gallon | | Customer Reviews | 4.4 out of 5 stars 194 Reviews | | Finish Type | Metallic | | Is Waterproof | False | | Item Form | Liquid | | Item Volume | 8 Fluid Ounces | | Manufacturer | Birchwood Laboratories LLC | | Model Name | Presto Black STEEL PC9 | | Model Number | 5602 | | Paint Type | Conversion Coating | | Part Number | 5602 | | Size | 8 Fl Oz (Pack of 1) | | Special Feature | Chip Resistant | | Special Features | Chip Resistant | | Specific Uses For Product | Interior/Exterior | | Surface Recommendation | Metal | | UPC | 850064905007 | | Unit Count | 8.0 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Birchwood - **Color:** Black - **Finish Type:** Metallic - **Item Volume:** 8 Fluid Ounces - **Paint Type:** Conversion Coating - **Size:** 8 Fl Oz (Pack of 1) - **Special Feature:** Chip Resistant - **Specific Uses For Product:** Interior/Exterior - **Surface Recommendation:** Metal - **Unit Count:** 8.0 Fluid Ounces ## Images ![8oz Birchwood Presto Black STEEL PC9 Technologies - blackening concentrate - Image 1](https://m.media-amazon.com/images/I/61NeZ3o6zEL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ works great! *by S***O on May 26, 2026* tarnishes steel beautifully. very happy with how it turned out. I sealed it with satin lacquer and my sculpture looks incredible. super easy to use and kinda hard to mess up ### ⭐⭐⭐⭐⭐ Don’t blink, this stuff works fast and good! *by T***3 on May 20, 2025* Dang, this stuff works so fast you better not blink!! The beauty ring bolts in my bronco were kind of messed up from removing a couple times so bare metal was showing through the black. I poured some of this stuff on a bowl, dropped the button head torx bolts in and Shazam! No more silver was showing. Incredible. They look fantastic. One difference from the stock bolts is these come out with a matte black finish while the OEM Ford bolts have a shine on the black. I waxed these baby’s up and they look very, very close to the stock ones. Nobody would ever know. I got so punch happy I took my eyeglasses apart and threw the frames in but no go, this stuff only works in steel not aluminum. Oh well, can’t win ‘em all. This stuff works really well, if you need to blacken some steel hardware…get you some! ### ⭐⭐⭐⭐⭐ Works great! *by S***L on May 2, 2026* Works great, works quick, just be sure to clean the surface really well. Any grease or oil with stop the reaction. I used isopropyl alcohol to clean my surface. ## Frequently Bought Together - Birchwood Presto Black STEEL PC9 Technologies - versatile blackening solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Birchwood Casey Fast-Drying Fast-Acting Aluminum Black Metal Finish for Restoring Scratched and Marred Areas, Gun Cleaning - Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) --- ## 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.co.za/products/663084920-8oz-birchwood-presto-black-steel-pc9-technologies-blackening-concentrate](https://www.desertcart.co.za/products/663084920-8oz-birchwood-presto-black-steel-pc9-technologies-blackening-concentrate) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-05*