John, Lou, Ole SF, Adriatic, and Surfliner,
Thanks for your comments and product suggestions. Oddly, other than the mention of some harmful petroleum ingredient in one, none of these products want to divulge what's in them. There's no mention of "acrylic" anywhere, let alone any ingredients.
I've been doing school work all day (and not getting very far), and so didn't try out the scratch pen nor daub the second truck model with the Rejuvenate floor wax. However, I just added some water to a little cap full of the Rejuvenate as an experiment. First of all, it seemed more viscous to me today, so it might be OK for dipping models without dilution. (My cloth/paper towel method last week was less wasteful, more precisely targeted, and still worked.)
Rather than messing with a model vehicle, I applied the slightly thinned product to a corner of my kitchen floor. Although this wasn't a definitive nor even comparative test (linoleum afterall isn't metal), the diluted version seemed to retain its shine and adhesive properties. The directions say NOT to use solvents, ammonia, or orange-based products because they will damage the "shine and luster".
Back to school work ...
Tomlinson Run Railroad