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When your steel needs a deep, dark finish and you want to skip the hot tank entirely, Birchwood Casey Super Blue Liquid is one of the go-to names in cold bluing. This is the double-strength formula, built to work on highly polished steel parts and hardened steels that contain nickel and chrome alloys. It is not made for stainless, but on the right steel it earns its reputation as the blackest blue in the Birchwood Casey lineup. The 32 oz quart bottle gives you a serious amount of solution, which is why folks running lots of small parts or tackling a full rebluing project tend to reach for this size instead of the little bottles.
Being a double-strength solution, Super Blue reacts faster than blue paste and usually gets you where you want to be in fewer coats. It works cold, meaning the chemistry does the coloring without heating the metal, so there is no boiling tank or open flame involved. That makes it a friendly option for home shop work and touch-ups on worn spots. One thing to keep in mind is that the solution will affect existing bluing it contacts, so keep it confined to the area you are actually working on.
Everybody who does this consistently will tell you the same thing: prep is the whole game. Clean and degrease the metal until it is spotless, wipe it down with denatured alcohol, and avoid touching the bare steel with your fingers afterward since skin oils will fight the finish. Many builders gently warm the part first, apply the Super Blue, card it back with 0000 steel wool between coats, then repeat until the color reaches the depth they want. Finishing with a good gun oil or rust preventative helps neutralize and protect the fresh finish.
This one is popular with gunsmiths, restorers, tool makers, and DIY hobbyists refreshing an old rifle, shotgun, or handgun. If you blue steel regularly, the quart size is the sensible pick over the small bottles.
Super Blue is a double-strength solution designed for highly polished steel parts and hardened steels containing nickel and chrome alloys. It produces its darkest, blackest results on these harder alloy steels. It is not intended for stainless steel, and some users note it does not color low carbon steels as strongly as the alloy steels it was built for.
No, Super Blue is a cold bluing solution, so it chemically reacts with the steel without a hot tank or torch. That said, plenty of experienced users lightly warm the part with a hair dryer first because it can speed up the reaction and even out the finish. Warm or cold, thorough degreasing before you apply is the real key to a good result.
Because it is double-strength, Super Blue reacts quicker than blue paste and typically needs fewer coats to reach a rich color. The usual approach is to apply, card the surface with 0000 steel wool, then repeat until you hit the darkness you want. Just keep the solution off any surrounding bluing you want to leave alone, since it will affect existing finish it touches.
The quart bottle gives you plenty of solution for extensive rebluing work or lots of small parts, which makes it a practical pick for gunsmiths, restorers, and anyone who blues steel often. Folks who go through cold blue regularly find the larger size covers a lot more work than the little bottles. Coverage will depend on the size and condition of the parts you are treating.
| UPC | 029057134322 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 13432 |
| Product Type | Blueing Liquid |
| Quantity | 1 |
| Shipping Weight | 2.5 |
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