I had the same cloudy streaks after I used Walbernize on our
1966 Globe Trotter last year. I was told by other vintage Airstream owners and several restorers that the mild abrasive in Walbernize is designed to take out swirls on later Airstreams with coatings, NOT vintage rigs like ours that have highly polished skins. The same goes for other "polishes" like the one from Griot. They create cloudy streaks in highly polished aluminum.
Taking this advice, I tried using the proceedure for final polishing in the Vintage Trailer Supply website and got great results with a smalal area that was particularly cloudy.
Here is a link to that website:
https://www.vintagetrailersupply.com...tream-s/46.htm
This summer I'm going to wash our Airstream with Dawn (to get rid of any wax and sealant) then re-polish the entire trailer. No sealer for me in the future.
I do wish that Airstream dealers, repair facilities and the manufacturer of Wolbernize would warn owners about this problem.