Can't seem to recall the name, but think it is something like Umaru, etc..
IIRC, it's produced in Japan, is clear, comes in small, thin, rectangular bricks, and can be warmed up in hot water to make it soft, and then pressed over your sculpts/detailing, in order to make a temporary mold.
Then, you can use that with some air-hardening materials (epoxies, like Green Stuff, etc.), and/or possibly resin, to cast small parts with.
I looked on eBay, under various titles and materials searches, but didn't have any success.
I need to do some vehicle conversions, and cutting the engine grates off the plastic model, and repositioning in 1/144th scale may be a bit dicey, to say the least, so thought this might be a better option. I don't want to compromise the structural integrity of the small, plastic hull.
I'd be fine with other material recommendations for doing the same, if there's other stuff, easily available, from Hobby Lobby, etc.. I seem to recall someone mentioning that as well, and if possible, would like the option to have slightly larger pieces cast too, e.g. perhaps 2" x 2" squares or so, instead of the smaller, strips.
I think someone makes a material that can be microwaved to warm/soften it up as well. Maybe this one can be too.
Also, can use recommendations on what to use, other than liquid resin, to cast the small parts with, e.g. Green Stuff, etc..
Thoughts?