---
product_id: 558609324
title: "Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon)"
brand: "birchwood"
price: "VT74243"
currency: VUV
in_stock: true
reviews_count: 6
category: "Birchwood"
url: https://www.desertcart.vu/products/558609324-birchwood-technologies-antique-black-m24-cold-brush-on-traditional-patina
store_origin: VU
region: Vanuatu
---

# Deep black chemical patina, not paint Room-temp application, no special gear 100-150 sq ft coverage/gallon Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon)

**Brand:** birchwood
**Price:** VT74243
**Availability:** ✅ In Stock

## Summary

> ⚫ Elevate your metalwork with timeless black elegance — don’t just finish it, transform it.

## Quick Answers

- **What is this?** Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) by birchwood
- **How much does it cost?** VT74243 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/558609324-birchwood-technologies-antique-black-m24-cold-brush-on-traditional-patina)

## 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

- • **True Chemical Patina:** Creates a rich, deep black finish by reacting with metal—preserving natural texture, never a surface coating.
- • **Effortless Application:** Apply by brush, wipe, or immersion at room temperature—perfect for quick touch-ups or batch production.
- • **Durability Meets Design:** Finish with wax, oil, or clear coat to lock in color and protect your work indoors or out.
- • **Architect-Approved Finish:** Trusted by pros since 1948 for flawless black patinas on copper alloys.
- • **Customizable Depth & Shade:** Layer to achieve anything from soft aged tones to bold black—seamlessly match or restore existing finishes.

## Overview

Birchwood Technologies Antique Black M24 is a premium, USA-made cold brush-on patina solution designed specifically for copper, brass, and bronze. It chemically reacts with metal surfaces to produce a smooth, deep black finish that preserves natural texture. With easy room-temperature application and customizable shading, it’s ideal for architects, artists, and fabricators seeking professional-grade, durable black patinas for hardware, fixtures, and decorative metalwork.

## Description

Metal Finishing Solutions ABOUT US: 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. ABOUT US 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. Top Sellers Visit the Store Top Sellers Visit the Store

Review: Genuine Traditional Black Patina for Metals - I've been using Birchwood Technologies Antique Black M24 on copper and brass pieces around my workshop, and it delivers a proper chemical patina rather than a painted-on coating. That's the key distinction — this reacts with the metal surface to create a genuine aged black finish. Application is straightforward: I brushed it on with a cheap chip brush, let it react for the recommended time, then neutralized and sealed it. The process took maybe 20 minutes total for a small decorative copper box I was working on. The black that develops is a deep, rich charcoal — not flat black paint, but a living finish that has some depth and variation to it. What I appreciate about this product is that it preserves the surface character of the metal. You can still see the underlying grain and texture, which is exactly what you want for antique reproductions or restoring old hardware. Paint would just coat over all that character. The "Made in the USA since 1948" heritage shows in the formulation — this isn't some hit-or-miss product from an unknown brand. It's consistent and predictable if you follow the instructions. One thing to note: work in a well-ventilated area, and wear gloves, because this stuff will stain your skin pretty permanently if you get it on yourself. For anyone doing metalworking, antique restoration, or architectural hardware projects, this is a solid choice at a reasonable price point.
Review: Fast acting on brass - I use this to age engraved brass coins. I've got quite a few different brands since they all work similarly. This Birchwood solution seems to react faster than some of the other ones. It's also a bit bigger bottle. For me it mostly comes down to price since all solutions tend to get you to the same place. The smaller bottle is not the cheapest per ounce compared to the brands but the 32oz is good value. If you've never used it before there's not much to it. You can immerse your object in some of the fluid or apply with a qtip or rag. Wash with fresh water when you think you've reached the right color then use a brass brush or steel wool to clean it up. If you want it darker then just do it again. If it's too dark then polish your item and try again.

## Features

- MADE IN THE USA: Birchwood is the trusted name used by Architects, Artists and Industry since 1948
- RICH BLACK PATINA FOR COPPER ALLOYS Formulated specifically for copper, brass, and bronze. Produces a deep traditional black finish by chemically reacting with the metal — not paint, dye, or coating — preserving natural surface character.
- SMOOTH, UNIFORM ARCHITECTURAL FINISH Creates an even satin black appearance across sheet, cast, and machined parts. Ideal for hardware, fixtures, lighting components, nameplates, trim, and decorative metalwork.
- ROOM-TEMPERATURE APPLICATION Simple wipe, brush, or immersion process with immediate visual development. Perfect for fabrication shops, restorers, and touch-up work without specialized equipment.
- CONTROL SHADE AND DEPTH Light application produces soft aged tones while additional passes build darker black coloration. Easily matches existing patinated hardware or blends repairs seamlessly.
- DESIGNED FOR TOUCH-UPS AND PRODUCTION Works equally well for single-part correction or batch finishing. Maintains detail on engraving, stamping, threads, and fine features.
- FINISH WITH WAX, OIL, OR CLEAR COAT Seal to lock in color and improve durability depending on indoor or outdoor exposure requirements.
- PROFESSIONAL METAL FINISHING CHEMISTRY Manufactured by Birchwood Technologies using industrial finishing expertise for consistent, repeatable results across projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2RFBCDL |
| Additional Features | Flake Resistant |
| Base Material | Chemical Solution |
| Best Sellers Rank | #232,246 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #406 in Household Stains |
| Brand | Birchwood |
| Brand Name | Birchwood |
| Coating Description | Liquid Patina Solution for Black Finish on Metal |
| Color | Black |
| Compatible Material | Copper, Brass, Bronze |
| Coverage | 100-150 sq ft/gallon |
| Customer Reviews | 4.4 out of 5 stars 9 Reviews |
| Finish Types | Patina |
| Item Dimensions | 5 x 5 x 11 inches |
| Item Weight | 3 Pounds |
| Liquid Volume | 1 Gallons |
| Manufacturer | Birchwood Laboratories LLC |
| Manufacturer Part Number | 740040 |
| Material | Wood Based |
| Material Type | Wood Based |
| Model Name | Antique Black M24 |
| Model Number | M24 |
| Number of Items | 1 |
| Paint Type | Conversion Coating |
| Size | 1 Gallon |
| Surface Recommendation | Copper, Brass, and Bronze |
| Unit Count | 128.0 Fluid Ounces |

## Product Details

- **Brand:** Birchwood
- **Color:** Black
- **Material:** Wood Based
- **Model Name:** Antique Black M24
- **Surface Recommendation:** Copper, Brass, and Bronze

## Images

![Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) - Image 1](https://m.media-amazon.com/images/I/61-8sckImHL.jpg)
![Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) - Image 2](https://m.media-amazon.com/images/I/710GzBlZb3L.jpg)
![Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) - Image 3](https://m.media-amazon.com/images/I/716b8zZrLiL.jpg)
![Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) - Image 4](https://m.media-amazon.com/images/I/61Ljh5MXoaL.jpg)
![Birchwood Technologies Antique Black M24 - Cold Brush on Traditional Patina Solution to Create Black Aged and Distressed Look on Copper, Brass, and Bronze (1 Gallon) - Image 5](https://m.media-amazon.com/images/I/61iX7uLzQ4L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Genuine Traditional Black Patina for Metals
*by J***. on May 12, 2026*

I've been using Birchwood Technologies Antique Black M24 on copper and brass pieces around my workshop, and it delivers a proper chemical patina rather than a painted-on coating. That's the key distinction — this reacts with the metal surface to create a genuine aged black finish. Application is straightforward: I brushed it on with a cheap chip brush, let it react for the recommended time, then neutralized and sealed it. The process took maybe 20 minutes total for a small decorative copper box I was working on. The black that develops is a deep, rich charcoal — not flat black paint, but a living finish that has some depth and variation to it. What I appreciate about this product is that it preserves the surface character of the metal. You can still see the underlying grain and texture, which is exactly what you want for antique reproductions or restoring old hardware. Paint would just coat over all that character. The "Made in the USA since 1948" heritage shows in the formulation — this isn't some hit-or-miss product from an unknown brand. It's consistent and predictable if you follow the instructions. One thing to note: work in a well-ventilated area, and wear gloves, because this stuff will stain your skin pretty permanently if you get it on yourself. For anyone doing metalworking, antique restoration, or architectural hardware projects, this is a solid choice at a reasonable price point.

### ⭐⭐⭐⭐⭐ Fast acting on brass
*by K***Y on May 19, 2026*

I use this to age engraved brass coins. I've got quite a few different brands since they all work similarly. This Birchwood solution seems to react faster than some of the other ones. It's also a bit bigger bottle. For me it mostly comes down to price since all solutions tend to get you to the same place. The smaller bottle is not the cheapest per ounce compared to the brands but the 32oz is good value. If you've never used it before there's not much to it. You can immerse your object in some of the fluid or apply with a qtip or rag. Wash with fresh water when you think you've reached the right color then use a brass brush or steel wool to clean it up. If you want it darker then just do it again. If it's too dark then polish your item and try again.

### ⭐⭐⭐⭐⭐ This finishing solution is perfect and looks amazing when done.
*by M***S on May 12, 2026*

This solution is so easy to use. It reacts with the metal and then transforms to an antique black finish. It works perfectly. The finish is beautiful. The odor isn't overbearing like I thought it would be but it's not exactly subtle either. This solution does exactly what it says it's going to do and it looks great when done. It is worth the money.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-06*