[urq] metal polishing and coating

[DGraber460 at aol.com]

Any one have any BTDT experience (or just suggestions) about shining up mild 
steel (not stainless or  aluminum) and coating it for corrosion resistance?
I have always been a big fan of the Italian style of chrome/polished dual, 
angle cut, exhaust tips, and wanted to chrome the OE exhaust on the URQ. Not 
finding a local plater that was interested in taking on a small realtively 
difficult project like this, I decided to polish the tips myself, and then coat them 
for prolonged durability. I have reached an acceptable level of "satin" 
finish, but need input for what to use to coat them.
Any suggestions?
TIA

Thanks
Dennis
Denver