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๐ค Blacken Boldly, Finish Flawlessly!
Birchwood Technologies Presto Black STEEL PC9 is a fast-acting, water-based blackening concentrate designed for iron and steel alloys. It creates a rich, chip-resistant black patina ideal for architectural, industrial, and artistic applications. Easily customizable through dilution for brush, immersion, or spray application, it delivers professional-grade, uniform finishes in under 30 minutes. Compatible with all sealants, it requires sealing to prevent rust, making it the go-to solution for durable, vibrant black oxide coatings since 1948.











| ASIN | B0DFRCBLRZ |
| Age Range Description | Adult |
| Best Sellers Rank | #41,880 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #65 in Household Wood Stains |
| Brand | Birchwood |
| Brand Name | Birchwood |
| Color | Black |
| Color Code | #000000 |
| Colour | Black |
| Container Type | Bottle |
| Coverage | 1 sq ft/oz |
| Customer Reviews | 4.4 out of 5 stars 176 Reviews |
| Dry Time In Hours | 0.5 |
| Finish Type | Metallic |
| Finish type | Metallic |
| Full Cure Time | 0.5 Hours |
| Included Components | 8oz bottle of Presto Black STEEL PC9 |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Volume | 8 Fluid Ounces |
| Item volume | 8 Fluid Ounces |
| Manufacturer | Birchwood Laboratories LLC |
| Model Name | Presto Black STEEL PC9 |
| Model Number | 5602 |
| Paint Type | Water-based |
| Part Number | 5602 |
| Size | 8 Fl Oz (Pack of 1) |
| Special Features | Chip Resistant |
| Special features | Chip Resistant |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Metal |
| UPC | 850064905007 |
| Unit Count | 8.0 Milliliters |
| Water Resistance Level | Water Resistant |
K**.
Good product
Works great
S**O
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
S**M
This stuff works excellent!
This stuff works excellent! Used it for a bunch of raw steel that I welded up for under-counter brackets, vintage ceiling lighting, etc... Was able to make it look super rustic, without the need to simply paint it black. Depending on how much you use, or how long you leave it on, will determine how dark/blackened the metal becomes.
D**A
Worked great on a 1911 A1
I needed to sand down the grip safety on a parkerized 1911 A1 a bit as it dug into the web of my hand. Used the Presto Black Steel when I was done and it came out great. A little darker than the original, but you wouldn't really notice unless you were looking for it. Holding up well.
2**P
Nice blueing
Not perfect but does a very nice job without a lot of hassle m
Trustpilot
5 days ago
3 weeks ago