I used a repop trim on my truck. Just like others, I needed to reset the windscreen, and thought I'd dress it up a little. I also used a cheap gasket. I was by myself, and it was 50 degrees out, with no garage. I put it all together in the house in front of the fireplace... I also wiped the inside and outside of the gasket with AC Delco weatherstrip lubricant, which is a silicone emulsion. I makes hard rubber pliable.
I'm happy with the trim. It looks nice. There is a little "pucker" at each lower corner. I just filled the pucker with butyl goop. I don't know if a more expensive gasket would have helped. My father is restoring a 1954 Monarch SunValley, and he bought his rubber from Steele. It does generally seem nicer than what I had to work with.
All said, I don't know if the repop is chrome or stainless. I have not seen any tiny rust spots on it yet, unlike any of the other repop stuff, like my dang front grill.
