PU material car model
PU material is a kind of synthetic resin similar to the resin, toughness is weak, relatively brittle, usually suitable for pure static display model. As the PU material is not required to open steel mold production , only need to open the silicone mold can be molded mold, and the two mold costs vary widely, but the silicone mold price is relatively low, the general manufacturers are not charged. It is also because the initial PU is the first material poured into the silicone mold after the cooling molding, so the mold embryo, and then by the artificial grinding, polishing, carving, color, assembly and other steps (here I just list a few steps, the actual process To be more complicated), compared to zinc alloy and ABS are open steel mold casting mold parts directly after the production assembly, PU material car model is basically completed by the artificial production. So when the number of hours, you can use PU material production, when the number of more than 300, the use of ...