Originally Posted by tkasten
Is there an advantage to the above method vs: Perfect Polish method?.
It really is all a matter of opinion. We've done both...and settled on a kind of hybrid. On some panels that don't seem to be getting shiny enough with one method, Rob will switch over and try the other...
When we originally did our '64 (7+ years ago), we did it 100% using the Perfect Polish method - flat wool pads, different grades of Nuvite, finishing w/the Cyclo first using Nuvite 'C', then Nuvite 'S'...it is
a lot of work but leaves a beautiful finish.
This last year, we did our '56, we decided to try using the stitched & loose cotton buffs and tripoli/rouge bars for the compounding instead of the wool pads/Nuvite. Then finished w/the Cyclo, just like before - first with Nuvite 'C' then 'S'...it turned out just as nice as the other method.
methods are a lot of work through the compounding stage. Especially if you are removing 40+ years of oxidation - you have to cut through it. In newer trailers, you are also dealing with the slightly milled texture - gotta smooth that out.
We've done demos at the RMVAC rallies using both methods side by side on the same panel...most people can't really tell the difference when it's all done. The only real visible
difference is before you Cyclo, the swirls are circular with the flat pad method and more lineal with the buff on end method, but regardless the Cyclo is the finishing touch that brings out the mirror shine. One other thing is, Nuvite doesn't work as well in extreme temperatures - either too hot or too cold where the bars are not as effected.
It seems that the bar method does seem to be slightly
faster, but it also seems to leave more light scratches for the Cyclo phase and being that it is more aggressive, it would be easier to overheat a panel &/or burn through the Alclad finish. The bar method is cheaper - but we still use the Nuvite products for the Cyclo step so not that much. BOTH methods are incredibly messy and time consuming - but, IMO the mirror shine is worth the effort.
The good news is, you really don't have to go through all the compounding (removing the oxidation) stages except for when polishing the first time, if you maintain it by Cyclo polishing every year because it takes a long time to oxidize - at least here in dry CO. Until this fall, we have done absolutely nothing
but wash/wax our '64 in about 5 years. It has
oxidized ever so slightly, but it still holds it's own compared to the freshly polished '56 sitting right next to it.
This fall, we did however, replace a couple of damaged panels on the '64 and those needed to be polished - which prompted a touch-up on the whole trailer. This time Rob is using the bars & buff on the new panels & the touch-up. Then Cyclo with 'C' & 'S'. The second time compounding (if you really want to even call it that) is MUCH
quicker, because it's only a couple of years of oxidation - only the most discriminating would even think it's necessary to re-compound it all based on the condition. If we hadn't replaced panels, that are now freshly polished - we probably would only Cyclo w/o re-compounding it and it would be fine.
The bottomline IMO, is that it doesn't really matter which way you remove the oxidation as long as it is all
removed. It's really the Cyclo polishing step (w/Nuvite) that makes the difference in that 'mirror finish' we all strive for. The Cyclo is what takes out all the swirls and leaves that smooth as glass deep shine.