Quoted from Tallon:
Because they are using a version is automotive clear and the characteristics of the plastic body panels is pretty close to characteristics is the wood and is the same as the insert plastics.
Instead of defending someone’s opinion that you like try listening to people who have done some work in the medium described. I’ve seen a lot of bodywork brought to our shop to fix the poor job done by someone else.
I’m not arguing there isn’t a problem, I’m saying the problem isn’t what one mans opinion, OPINION says it is
Medium and ink aside, there is merit to the idea that the clear is not being given appropriate time to cure. During the cure, solvents are dissipating and this is generally the smell. There are a few things to note, modern clears tend to have a longer cure time than those 20-30 years ago. The longer cure time coupled with the increased thickness of clear coats, certainly lends to the idea that these things are simply not given enough time to cure.
As far as the ink goes, direct to substrate requires a primer coat and then printing above that. I don't know what the desired finish of the playfield is, but I would venture a guess it needs to be smoother than it needs to be for screening. Less bite for colors and clear may also contribute to this issue.
I'm not going to bash either side of the argument here. I do think this is a complex and possibly compound issue that manufacturers should be paying a lot more attention to. we can speculate, but they should test, evaluate, and innovate.