Andrea,
The seam tape does become discolored over time. When we bought our '82
Scamp two years ago, that was one of the first things I wanted to change. I ordered a couple of rolls of seam tape from
Scamp, pulled off the old tape and put in the new. It was very easy to do. There were some places that didn't stick as well, so I used a hot glue gun on those spots. It really improved looks of the interior!
Sandra