Howdy Dixon!
Sorry but I cannot help you out with regards to rust protection. I have no idea which would be better, hopefully someone on here does though!
With regards to the ClearBra and the best choice, it's all going to depend on personal opinion. I would venture to say the most widely used one is the 3M film. As far as which ones are going to show more so then others, that is going to depend on thickness. A lot of times if you go to a custom shop to have it installed (or even some dealerships), they will ask you how think you want the film. The thicker the film, the more it will show. You have a white car though, so there is really no reason to worry about showing, white tends to show the lines of the bra the least.
I would ask your dealership who they have install clear bra's. That would be a good starting point when looking for shops in your area
Sorry but I cannot help you out with regards to rust protection. I have no idea which would be better, hopefully someone on here does though!
With regards to the ClearBra and the best choice, it's all going to depend on personal opinion. I would venture to say the most widely used one is the 3M film. As far as which ones are going to show more so then others, that is going to depend on thickness. A lot of times if you go to a custom shop to have it installed (or even some dealerships), they will ask you how think you want the film. The thicker the film, the more it will show. You have a white car though, so there is really no reason to worry about showing, white tends to show the lines of the bra the least.
I would ask your dealership who they have install clear bra's. That would be a good starting point when looking for shops in your area