How difficult LCP Liquid Crystal Polymer is to injection mold?
Can you tell me how difficult LCP Liquid Crystal Polymer is to injection mold?
It must be dried well.
With a properly designed mold (impingement in right areas) it has predictable and consistent shrinkage/warpage.
There are products that won't run in any other materials.
A lot will depend on your type of product, so I just can give you some general guide lines.
Try to avoid hot runner systems. I have tried mold mast, husky and Günther and also these are very good systems I always had to concluded that at some moment the runner system was a cause of error. Try to avoid weld lines. Keep your runner section as small as possible (increase shear). Inject as fast as possible. Increase your mould temperatures. Just do everything possible to increase the shear rate. And finally, do not experiment with the low cost LCP’s before you have enough experience with the LCP process. If you are moulding parts that need a coating (alu or chrome) for heat shielding then inform your customer that properly the visual aspect will not meet their expectation. I hope you can find something useful in my answer that can help you.