Re: Now if this could be used to make Packard parts

Posted by bkazmer On 2011/8/11 14:42:20

not sure what you're getting at with the PU. polyurethane, acrylate, and the skin (which is probably a complex blend of PVC, ABS and alkyl phthalate can all photo-degrade. All have some air permeability which I don't see as relevant. PU can accelerate the degradation of the PVC skin, but all of that is not at play in the acrylate part, which may have simply gotten warm enough to sag, as prototyping stuff is normally low strength so it fuses easily.