I have the buff wheels and started doing my own polishing. its looking really great. Can anyone give me some pointers on keeping the shine on alloy. Clear coat laquer?? or what?

Check out The Eastwood Company. They had a product in a spray can that they swore by. I bought it and never used it. I stripped and polished a road bike frame. They told me it would never yellow over time etc. Can't remeber the name of the product.