Support BladeForums! Paid memberships don't see ads! Hi there I have just ordered a Leoko (Finnish - similar to the Swedish Eleiko) brand barbell, as I'm going to start strength training for the first time in my life...aged 30! I have purchased a powerlifting bar, but asked them to omit the usual black oxide coating and instead leave the bare steel. This is not a stainless steel, so I was wondering which methods would be most appropriate for forcing a patina? I've done it to my GEC O1 blades in the past by pouring steaming hot distilled vinegar over the steel for about 20-30 minutes. Would this process be safe for the barbell? I'm concerned it might have a detrimental effect on the rotation of the sleeves. I know I could just let it get a natural patina over time with sweat, oil, etc. but just wanted to know if anyone knows a good way to get a head start. Cheers!