Need castable material.
Need castable material.
(OP)
I'm looking a a material which is easily castable and easy to disntegrate. It should have an expansion coefficient <8 ppm/°C. A polymer matrix composite might be nice. Cost is a factor.
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RE: Need castable material.
Other plastics with the requisite low CTE are ABS, acrylic, polycarbonate, polyimides and some epoxies (e.g., novolacs), but these are far more difficult to remove than polystyrene.
RE: Need castable material.