keep in mind the 38 is an estimate

=original build * .98 **62

I've seen ones in Black, Coronet Blue,Egyptian Sand and Arizona Beige

incorporate a fungicide in the plastic, problem solved. sounds like the wrong grade was used.

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.

undercuts in a hard part/hard mold are normally handled by "slides" - parts of the mold retract to demold. as to the silicone, try cleaning your part with IPOH (ordinary stuff from the drug store is fine).

polyurethane is normally very easy to paint - it has a surface energy of 38 dynes/cm2 or so (high), and not surprisingly is compatible with urethane paint. I suspect your problem is a residual accelerant or a mold release. Silicone is terrible for paint adhesion

terrific - shouldn't the Crawford bring a Winton?

great info. do you know how the window garnish moldings were then finished on closed cars? Matching I would assume

the vent window on my 41 is PPG (pittsburg plate glass) duolite - their name for laminated glass. I can't say 100% that I know it's factory original, but it's not their current logo

I think it's working. I can see the fron bumper wrap around becoming the top edge of the reynolds wrap, and the rear bumper wrap around flowing from the lower edge.

An alternate to the Predictor/Futura front might be a Ghia design with the headlights inboard of the leading fender edges.

This is pretty competitive for 1958-59. The Lincoln was a pig, the Imperial a decent shape with as you said an overly busy front, the Cadillac hangs together but is hardly restrained elegance.

Maybe you can replace the origami folder in Warren doing Cadillac these days

I like it! Ready to tackle the grille?