Over on the sprinter forums, user geek plexi dipped his whole van. It is quite a long thread but you can get some more information on plexi dip starting around page 90.
sprinter-source.com/forum/showpost.php?p=323813&postcount=908
I can’t link due to my post count but, but you can copy and paste
sprinter-source.com/forum/showpost.php?p=323813&postcount=908
I can’t link due to my post count but, but you can copy and paste
