wont happen, cold blueing is just a touch up on small parts....whole barrel it wiill wear off.
hot blueing ...tanks,hot solution, carding , repeat as often as nessary....
for small parts ...clean part, heat,dip in transmission fluid, will change color to a blue,,small screws heads for but stocks.
hot blueing ...tanks,hot solution, carding , repeat as often as nessary....
for small parts ...clean part, heat,dip in transmission fluid, will change color to a blue,,small screws heads for but stocks.
