Hi everyone,
First thank you to all of you who posts questions and replies to them. I've learnt a great deal from Eng-tips.
My question today is on PP living hinges. Production guys at my company are having difficulty in molding a living hinge that can be flexed more than a couple times.
The...
I hope it's alright to keep posting questions.
Currently the company I work for manufactures thin-wall ice cream tubs with high flow PPCO-block. We do not add the regrind into the same process as we face numerous quality issues. I've been told black spots, poor mixing of regrind and virgin...
Can someone advise with what the Industry norm is for CaCO3 in blow molded items? Say for personal care items or milk jugs or motor oil cans or seats? Do companies add CaCO3 in these items to get a cost saving? How do you achieve this? What I've seen with injection molding is that the overral...
Is HDPE good for Deep Freezer Applications (-40C)? HDPE has a very low Tg and most datatsheets list brittleness temperature as -75C for HDPE. Therefore shouldn't hdpe be better for Deep Freezer applications? Such as a crate. However what ive seen is that suppliers list PPCO in their data sheets...
