--- product_id: 536835406 title: "Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon)" brand: "birchwood" price: "$470.11" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/536835406-birchwood-aluma-black-cold-brush-on-blackening-solution-for-aluminum store_origin: US region: United States of America --- # Color develops in 1-5 minutes Deep black finish on aluminum alloys Flake-resistant, corrosion-resistant coating Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) **Brand:** birchwood **Price:** $470.11 **Availability:** ✅ In Stock ## Summary > 🖤 Transform aluminum into timeless black art—fast, flawless, and fiercely durable! ## Quick Answers - **What is this?** Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) by birchwood - **How much does it cost?** $470.11 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/536835406-birchwood-aluma-black-cold-brush-on-blackening-solution-for-aluminum) ## 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 - • **Trusted Legacy:** Since 1948, the go-to solution for professionals demanding quality and aesthetic excellence. - • **Effortless Application:** Brush, swab, spray, or dip—flexible methods for any project scale or style. - • **Instant Artisan Finish:** Achieve a rich black patina on aluminum in minutes—no heat or electricity needed. - • **Durable & Flake-Resistant:** Conversion coating resists chipping and peeling, aging gracefully over time. - • **Versatile Surface Compatibility:** Perfect for railings, sculptures, gun parts, and precision machined aluminum. ## Overview Birchwood Aluma Black is a 1-gallon cold brush-on blackening solution designed specifically for aluminum alloys. It creates a deep, flake-resistant black patina through a conversion coating process that develops color within 1 to 5 minutes without heat or electricity. Ideal for metal finishing on railings, sculptures, gun parts, and more, it offers corrosion resistance and a durable finish that ages naturally. Trusted by artists and manufacturers since 1948, this product delivers professional-grade results with easy application methods. ## Description Since 1948, Birchwood Technologies has been the trusted source for metal finishing solutions. From deep black oxide to artisan antiquing, our time-tested processes help manufacturers and artists create beauty and protect metal for generations. Proudly MADE IN THE USA. Easily blacken any Aluminum part such as railings, stairs, fixtures, sculptures, precision machined, gun parts, castings, and more! Conversion coating allows the beauty of base substrate to shine through. Add extra texture by buffing with pad wheel or scotchbrite to create pieces of art. No heat, no electricity, simply swab on, brush on, spray on, or dip your parts by immersion. Color will begin developing immediately. In 1 to 5 minutes you can stop the reaction when you achieve the exact shade of color desired by rinsing with fresh water. In the hands of an artist our chemistry can be used to achieve a wide variety of stunning looks. Conversion coatings are non-dimensional, provide a beautiful black or distressed aesthetic appeal, does not chip and peel like paint, will continue to age naturally, extra corrosion resistance provided by top coat sealant of choice. Artists, Architects, and Sculptors have trusted Birchwood Technologies for decades when they have high valued projects to complete. By using different techniques a wide variety of aged patina appearances can be achieved. Beams, railings, stairs, sculptures, signs and more! Check out our other products available on desertcart! ## Features - Achieve a deep black finish on all aluminum alloys with Aluma Black ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Flake Resistant | | Asin | B0C3MV5BKP | | Base Material | Wood Based | | Best Sellers Rank | #158,304 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #280 in Household Stains | | Brand Name | Birchwood | | Coating Description | Black Patina Conversion Coating | | Color | Black | | Compatible Material | Metal | | Coverage | 100-150 sq ft/gallon | | Customer Reviews | 4.1 4.1 out of 5 stars (28) 4.1 out of 5 stars | | Finish Types | Aluminum surface condition will translate through conversion coating | | Included Components | Aluma Black A14 | | Item Dimensions | 5.5 x 5.5 x 11 inches | | Item Weight | 10 pounds | | Liquid Volume | 1 gallons | | Manufacturer | Birchwood Laboratories LLC | | Manufacturer Part Number | 6200 | | Material Type | Wood Based | | Model Name | Aluma Black | | Model Number | 620050 | | Number Of Items | 1 | | Opacity | 1 inches | | Paint Type | Conversion Coating | | Size | 1 Gallon | | Surface Recommendation | Aluminum | | Unit Count | 128 Fluid Ounces | ## Product Details - **Brand:** Birchwood - **Color:** Black - **Material:** Wood Based - **Model Name:** Aluma Black - **Surface Recommendation:** Aluminum ## Images ![Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) - Image 1](https://m.media-amazon.com/images/I/61OBvGVzB3L.jpg) ![Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) - Image 2](https://m.media-amazon.com/images/I/71xRUd26qhL.jpg) ![Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) - Image 3](https://m.media-amazon.com/images/I/71hBPq6FMaL.jpg) ![Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) - Image 4](https://m.media-amazon.com/images/I/7193n7CLQQL.jpg) ![Birchwood Aluma Black - Cold Brush on Blackening Solution for Aluminum alloys Traditional Patina Blue and Black Oxide Touch-up (1 Gallon) - Image 5](https://m.media-amazon.com/images/I/71hYidxD+QL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Blackest color I needed *by on Reviewed in the United States August 15, 2024* When I opened and saw a light blue liquid, I thought I had the wrong stuff but it turned black right away!!!!! ### ⭐⭐⭐⭐ Not a complete coating system *by on Reviewed in the United States January 26, 2026* Does what it’s supposed to but it’s not a complete system. Be sure to read the instructions on the manufacturers website. You need a surface sealer. You cannot get a durable black coating from this product alone. The finish rubs off easily. I wish it were sold as a package with an appropriate sealant. ### ⭐⭐⭐ Soso *by on Reviewed in the United States August 8, 2025* Couldn’t get it to work --- ## 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.us/products/536835406-birchwood-aluma-black-cold-brush-on-blackening-solution-for-aluminum](https://www.desertcart.us/products/536835406-birchwood-aluma-black-cold-brush-on-blackening-solution-for-aluminum) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-15*