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  1. sunburn731

    Polycarbonate? Is this the right plastic to use?

    It needs to be as optically clear as possible. Part of the helmet will be used to view out of. I think there will be an acceptable amount of hazyness / cloudiness...but for the most part, perceived quality would be best with something optically clear.
  2. sunburn731

    Polycarbonate? Is this the right plastic to use?

    Haha, I am a student of you guys. I'm actually an Industrial Designer; having worked primarily in consumer electronics. I'm working on a helmet and needed insight on plastics. I'm unfamiliar outside of plastics like ABS for CE... I don't think heat will be an issue, but voltage may be. As some...
  3. sunburn731

    Polycarbonate? Is this the right plastic to use?

    I'm looking for a plastic that have these characteristics: 1)Optically clear 2)Chemically resistant (particularly against oil, petroleum based chemicals) 3)Impact resistant / durable 4) Easy to mold Any recommendations would be helpful. Thank you.
  4. sunburn731

    is there difference between a linear solenoid and a linear actuator?

    I am designing a system that requires a pin to be pulled back to drop a ball in a tube. Based on my research I found a linear solenoid device and a linear actuator. Are they the same thing? If they are different, what are the key differences? I am looking for a low cost part that doesnt need to...
  5. sunburn731

    TPE vs TPV

    Thanks... But between the TPV and TPE..is there a reason one would choose one over the other? (While trying to achieve a overmold). i.e. (Is one cheaper? Is one easier to process? Is one superior in properties? etc..) Regards, Sunny
  6. sunburn731

    TPE vs TPV

    Hi, I am trying to over mold Polypropylene with a rubber like material and have narrowed it down to TPE (thermoplastic elastomer) and TPV (thermoplastic vulcanizate). I do not know the real differences and have some questions: 1)Can they both be overmolded onto polypropylene? 2)Which one is...
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