doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Infrared Thermometer for Nitre Bluing.

I picked up some Gordon's Stump Remover, which is 99% Potassium Nitrate and 1% Calcium Stearate, melted it down and tried it for nitre blueing.

After melting and burning off, perhaps the calcium stearate, it was a nice clear liquid. I've experimented with it some at various temperatures and I get a sense, if, with a set up a bit less primitive than mine, where the temps can be controlled a bit easier, the stump remover would do the trick.

I've used a one burner propane stove, the kind used for deep frying turkeys with some expanded metal placed over the burner to set the nitre pan on and a cheap thermometer that registers 700 degrees.

I've done a few screws and pins for a Rem Model 11 and a beater German guild sidelock and both turned out nice particularly the German guild pins.