Out with the BLUE and in with the NEW
I think a lot depends on weather and UV exposure. My recently acquired 1991 Excella must have been stored and situated such that the right side received little sun, but the left side full on exposure. I own a 2550 psi pressure washer and it blasted the right side blue stripe off on large pieces but the left side was impossible to blast off. Removal of the adhesive was another story. It was Rustoleum "Aircraft Remover" to the rescue. That stuff is wicked but fairly easy to use if you are careful. I bought a 1 gallon can for $39 at Autozone and it was worth every penny. The best scrapers I found was the laminate countertop samples they give away at Lowe's and Home Depot. The laminate has a very sharp edge and will cut through the baked on striped.