Certainly, there are some that we mold more than others. Nylon, typically glass filled, is one of our most common to shoot. We shoot many blended thermoplastics as well. Polycarbonate mixed with polybutylene terephthalate (PC/PBT) is very popular. As are some PC/ABS blends. Straight ABS is quite common, along with thermoplastic elastomers (TPE), which as the name would imply, is rubbery rather than firm like most others. Polyetherimide (PEI) is also a very popular resin for us to run, despite its high melt/processing temperature which tends to cause fits for other molders. High Density Polyethylene (HDPE) is run quite often, as is Polyphenylene sulfide (PPS) which is a great aluminum substitute in conversion efforts. Polypropylene (PP) is a commonly used plastic known for its good mechanical properties and resistance to heat and chemicals. You find it all over your house and in some industrial applications. We have even helped customers that wanted to experiment with Polyether ether ketone (PEEK) which has unbelievable mechanical properties but can be demanding when you injection mold with it.
The greatest thing of all is that our engineers are experts on the resin side of molding. We have blogged about it before. Our engineers are composite materials engineers, so they learned the science of the resins first, and then applied that knowledge as they learned the injection molding process. We have yet to encounter a thermoplastic that we could not injection mold.
So, have a tough project? Not sure if a particular resin is right for your end market? Give us a call. We’ll confirm what you are looking to do or possibly introduce you to some ideas you haven’t thought of.
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