UPDATE: “Good” news: a link in the comments section explains what happened here. Bleah.
I recent bought a model kit of a tank (a 1/35 Dragon T28). it has been *decades* since I’ve built a tank model, and right now with the Book projects building models is not a high priority, but what the heck. So I popped open the box, started looking at the parts and realized there was a problem.
The tracks are supposed to be flexible bands of molded vinyl. Fairly standard for a model kit… the two general approaches are either bands of flexible vinyl, or individual tracks and links. The tracks and links approach can produce the best looking model, but it can be a time and brain consuming nightmare to link hundreds of parts.
But there was a problem with the tracks. Instead of being flexible vinyl… they’re more like brittle cast resin. They actually shatter and crumble in the packaging:
As best as I can determine, this is the legit actual part. Based on YouTube videos of other people doing reviews and assemblies, the color is spot on, the vacuum-packed plastic sealed bag is right. The molding is crisp and clear, far better than would be expected if I somehow got someone’s resin recast of the vinyl tracks. But as you can see, the tracks are extraordinarily brittle… and they’re wet. They’re soaking in what seems to be some sort of oil.
So what am I looking at here? Is this some sort of weird manufacturing mistake… a set of resin tracks instead of vinyl? Or could this be vinyl that has degraded to a phenomenal degree? Is the oil the cause of the brittleness… or did the vinyl exude the oil and become brittle?
I’ve contacted the manufacturer and *might* get a set of replacement tracks in a couple months. That would be nice. But I am really curious about what the problem really is here. Anybody know of a series of reasonably safe tests that could determine what the oil is (silicone? hydrocarbon?) and whether the tracks are vinyl or resin. The easiest test I can think of: burn some resin, burn some vinyl. Then burn the tracks, which does it smell like? Simple, straightforward likely toxic as all get-out, so, yeah, no.