Super Blue Liquid Gun Blue Bottle - Double Strength Bluing Plus 25 Quality Cotton Swabs and 3" Cotton Patches for Restoring Guns and Other Metal Items

This stuff worked really well for me. I re-blued a old side by side double barrel. I can't say enough about how well this stuff worked.

when steel is highly polished without any dimples it worked well. But the product has to be left on for a longer time and several coats to get the steel to black

1st you have to acetone clean what you're trying to blue Then apply the BLUING wait an hour or so wipe off excrss then cover with oil and let it sit overnight it works great then

you apply go do something let it sit for 5 mins come back and reapply expect 5-8 coats. It will look good!!!

It's fast, it's easy, it's cheap and it works. It's a standard. Buy it, use it. Don't spill it where you don't want it!