---
product_id: 741842053
title: "Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz)"
brand: "birchwood"
price: "¥18756"
currency: JPY
in_stock: true
reviews_count: 5
category: "Birchwood"
url: https://www.desertcart.jp/products/741842053-birchwood-presto-black-steel-pc9-technologies-versatile-old-blackener-solution
store_origin: JP
region: Japan
---

# Concentrated formula for customizable strength Versatile application: brush, immersion, spray Made in USA, trusted since 1948 Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz)

**Brand:** birchwood
**Price:** ¥18756
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your steel game with instant, customizable black perfection!

## Quick Answers

- **What is this?** Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) by birchwood
- **How much does it cost?** ¥18756 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/741842053-birchwood-presto-black-steel-pc9-technologies-versatile-old-blackener-solution)

## 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 Heritage:** Join architects, artists, and pros who rely on Birchwood’s expertise since 1948 for flawless metal finishing.
- • **Customizable Concentrate:** Mix from 10% to full strength for precision control over speed and finish depth.
- • **Multi-Method Application:** Apply by brush, immersion, or spray to suit your project’s scale and style.
- • **Rust-Resistant & Durable:** Protect your metal with a finish that’s compatible with all sealants—oil, wax, lacquer, you name it.
- • **Instant Deep Black Finish:** Watch your steel transform with a rich, vibrant black patina in minutes—no waiting, no fuss.

## Overview

Birchwood Presto Black STEEL PC9 is a concentrated blackening solution designed for iron and steel alloys, delivering a fast-acting, deep blue-black patina. Suitable for brush, immersion, or spray application, it offers customizable strength for various project needs. Made in the USA and trusted since 1948, it creates a durable, rust-resistant finish compatible with all sealants, ideal for architectural, industrial, and artistic metal finishing.

## Description

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.

Review: This worked very well for my tools. It contains Selinium, so please dispose of it properly. I've collected my wastewater for the next hazmat drop off. There's more involved than I can fit into a review, so I'll include a photo. It only works on steel (I knew that), so you can see/expect things like the stainless bolts stay shiny. I didn't even try the aluminum handles; I dismantled most of these and cleaned and treated them individually using a 1:9 distilled water solution in an ultrasonic tank (using an isolation jar for the solution). The only refinement post-oil (camelia in my case) will be a topical microcrystalline wax, but this is already a 'standard' coat and much better than what I started with. If you're doing a more direct brush-on application, then my experience may not apply to you.
Review: 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.
- 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.
- With Birchwood Technologies' expertise in metal finishing, you can trust that Presto Black STEEL PC9 will provide a durable and long-lasting finish for your project. Order now and achieve a professional-looking black finish with ease.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFRCBLRZ |
| Brand | Birchwood |
| Capacity | 8 ml (Pack of 1) |
| Color | Black |
| Colour | Black |
| Colour Code | #000000 |
| Country of Origin | USA |
| Coverage | 1 sq ft/oz |
| Customer Reviews | 4.4 4.4 out of 5 stars (130) |
| Date First Available | 10 May 2025 |
| Finish Type | Metallic |
| Included Components | 8oz bottle of Presto Black STEEL PC9 |
| Is Waterproof | False |
| Item Dimensions LxWxH | 5.7 x 5.7 x 13.3 Centimeters |
| Item Form | Liquid |
| Item Model Number | 5602 |
| Item Part Number | 5602 |
| Item Volume | 8 Fluid Ounces |
| Item Weight | 281 g |
| Manufacturer | Birchwood Laboratories LLC |
| Model Name | Presto Black STEEL PC9 |
| Net Quantity | 8.0 Milliliters |
| Package Information | Bottle |
| Paint Type | Concentrated Liquid Paint |
| Shipping Weight | 0.28 Kilograms |
| Size | 8 ml (Pack of 1) |
| Special Feature | Rust Resistant |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal |
| UPC | 850064905007 |

## Product Details

- **Brand:** Birchwood
- **Colour:** Black
- **Finish Type:** Metallic
- **Item Volume:** 8 Fluid Ounces
- **Size:** 8 ml (Pack of 1)

## Images

![Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Image 1](https://m.media-amazon.com/images/I/316GfcYLf7L.jpg)
![Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Image 2](https://m.media-amazon.com/images/I/31AockmAIzL.jpg)
![Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Image 3](https://m.media-amazon.com/images/I/31jRFIdYZ+L.jpg)
![Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Image 4](https://m.media-amazon.com/images/I/41jbhW0TaPL.jpg)
![Birchwood Presto Black STEEL PC9 Technologies - versatile old blackener solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) - Image 5](https://m.media-amazon.com/images/I/514dwpy1-WL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by W***H on 20 December 2025*

This worked very well for my tools. It contains Selinium, so please dispose of it properly. I've collected my wastewater for the next hazmat drop off. There's more involved than I can fit into a review, so I'll include a photo. It only works on steel (I knew that), so you can see/expect things like the stainless bolts stay shiny. I didn't even try the aluminum handles; I dismantled most of these and cleaned and treated them individually using a 1:9 distilled water solution in an ultrasonic tank (using an isolation jar for the solution). The only refinement post-oil (camelia in my case) will be a topical microcrystalline wax, but this is already a 'standard' coat and much better than what I started with. If you're doing a more direct brush-on application, then my experience may not apply to you.

### ⭐⭐⭐⭐⭐ Review
*by T***3 on 20 May 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!

### ⭐⭐⭐⭐⭐ Review
*by B***N on 7 December 2025*

Works fantastically. Produces a much darker black than other bluing agents and works on alloys that others don't color well.

## 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)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-21*