---
product_id: 695649748
title: "Birchwood Technologies Presto Black STEEL PC9 - versatile blackening solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz)"
brand: "birchwood"
price: "$165"
currency: NZD
in_stock: false
reviews_count: 5
category: "Birchwood"
url: https://www.desertcart.nz/products/695649748-birchwood-technologies-presto-black-steel-pc9-versatile-blackening-solution-iron
store_origin: NZ
region: New Zealand
---

# Concentrate mixable 50/50 or 10% Fast-acting black oxide finish Compatible with all sealants Birchwood Technologies Presto Black STEEL PC9 - versatile blackening solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz)

**Brand:** birchwood
**Price:** $165
**Availability:** ❌ Out of Stock

## Summary

> 🖤 Elevate your steel game with Presto Black—where precision meets instant style.

## Quick Answers

- **What is this?** Birchwood Technologies Presto Black STEEL PC9 - versatile blackening solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (8 oz) by birchwood
- **How much does it cost?** $165 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/695649748-birchwood-technologies-presto-black-steel-pc9-versatile-blackening-solution-iron)

## 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

- • **Pro-Grade Concentrate:** Mix precise ratios for faster blackening or tough surfaces—perfect for architects, artists, and industrial pros.
- • **Customizable Application:** Versatile brush-on, immersion, or spray methods let you tailor your finish for any project scale or style.
- • **Seal & Protect Your Work:** Finish with oil, wax, or lacquer to lock in your look and prevent flash rust—because your craftsmanship deserves longevity.
- • **Instant Matte Black Finish:** Transforms steel surfaces with a rich, uniform black patina in minutes—no waiting, no fuss.
- • **Trusted Heritage Since 1948:** Birchwood Technologies delivers reliable, USA-made quality favored by industry leaders worldwide.

## Overview

Birchwood Technologies Presto Black STEEL PC9 is a high-performance black oxide concentrate designed for iron and steel alloys. It delivers a fast, deep blue-black patina via brush, immersion, or spray, ideal for architectural, industrial, and artistic applications. Made in the USA and compatible with all sealants, it offers professional-grade customization and a durable finish when properly sealed.

## 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

- Causes severe skin burns and eye damage.
- May cause damage to organs through prolonged or repeated exposure.
- Toxic if swallowed.
- Very toxic to aquatic life with long lasting effects.
- 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.
- 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 |
| Batteries Required? | No |
| Best Sellers Rank | 431,009 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,154 in Stain |
| Colour | Black |
| Coverage | 1 sq ft/oz |
| Customer Reviews | 4.4 4.4 out of 5 stars (130) |
| Date First Available | 1 Oct. 2024 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Finish | Metallic |
| Included Components | 8oz bottle of Presto Black STEEL PC9 |
| Item Weight | 281 g |
| Item model number | 5602 |
| Manufacturer | Birchwood Laboratories LLC |
| Part Number | 5602 |
| Product Dimensions | 5.72 x 5.72 x 13.34 cm; 281 g |
| Size | 8 ml (Pack of 1) |
| Special Features | Chip Resistant |
| Usage | Interior/Exterior |

## Product Details

- **Brand:** Birchwood
- **Colour:** Black
- **Finish type:** Metallic
- **Item volume:** 8 Fluid Ounces
- **Paint type:** Specialty
- **Size:** 8 ml (Pack of 1)
- **Special feature:** Chip Resistant
- **Specific uses for product:** Interior/Exterior
- **Surface recommendation:** Metal
- **Unit count:** 8.0 millilitre

## Images

![Birchwood Technologies Presto Black STEEL PC9 - versatile blackening 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 Technologies Presto Black STEEL PC9 - versatile blackening 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 Technologies Presto Black STEEL PC9 - versatile blackening 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 Technologies Presto Black STEEL PC9 - versatile blackening 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 Technologies Presto Black STEEL PC9 - versatile blackening 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 New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*