Originally Posted by
Andrew R Stewart
Back in the day when Shimano was just a raising presence and Colnago ruled we would joke that installing a Japanese component on an Italian frame would blister the paint. Something about Euro paint being incompatible with Asian metal... Andy

Equally likely was the fact that European paint was notoriously poor back then. I recall that some importers would bring in bare frames and have them painted here. Maybe the Asian metal got an undeserved bad rap.