simon1
Self Ignored by Vista
I have a bottle of Birchwood Casey cold blue that I've had for years but never used. Have any of you guys used it and what were your experiences.
I have a bottle of Birchwood Casey cold blue that I've had for years but never used. Have any of you guys used it and what were your experiences.
I have used the Cold Blue quite a few times over the years, but I use it by doing the Hot Bluing process. After the barrel or receiver prep, (sanding, de-greasing, etc.) Heat up some boiling water and pour it into a plastic trough, the length of your barrel or receiver. I use wooden dowels as handles with broken wire clothes hangers as hooks.
I heat the barrel up in the very hot water for 5-10 minutes, then pull it out and hang it by the hooks, give it a fast dry off with a towel, then apply the Cold Blue. It dries really fast, I give it a once over with 0000 wool, and then back into some boiling water again for another 5-10. Repeat this process dunking, drying and steel wool for as many times as it takes to reach the color and depth that you desire.
I'm usually doing an average of 8-10 coats, before I get to where I want it to be. It's pretty fool proof, and leaves a deep, rich, glossy blue. I've refinished a few old rifles of friends this way and the finish seemed durable enough to me. No complaints yet.
Thanks, Rob. That sounds close to the process of heating up the part before putting the other cold bluing on. I guess I should have made it clear, I'm just looking for touch up and not bluing an entire piece. If I was doing an entire piece I'd do hot blue.
Thinking about how to treat the bare metal if I file down a front sight a bit. Glad to hear 8-10 coats turns out pretty long lasting.
Touch up? Heat gun and same process with the steel wool for spot treatments.
I hot blued a couple straight blades. Good prep is definitely the key. I actually hung them in the oven at 300, cooled to the touch enough to handle, and throw a coat on. Wash rinse repeat until happy.
They were good practice.
Great thread!
I never could get cold blue to work worth a flip.
Makes me want to open up the exact same lookin' bottle of Birchwood Casey Perma-Blue that's been sitting on a shelf at my reloading bench for 25 years or longer and blue something.