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Old Dec 16, 2012, 02:07 AM
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Joined Nov 2004
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Originally Posted by AirBornOne View Post
Hmmm,I really don't see the correlation between 'injection molding' and 'expanded bead molding' (for lack of a more correct industry term).
Injection molding is for those cute,non-flying,miniature replicas I used to assemble as a lad.
Usually made with styrene formulations heated until liquified & pumped into various mold cavities.
Nothing like a 'pellet' of a custom formulated PP/PE resin blend,which is placed into a cavity and subjected to various pressures (or lack thereof ) and temperatures to induce a 'pop-corn' effect.
Different techniques,materials,equipment,tooling yada yada yada,and not comparable.Or apples & oranges if that helps you.

Ok,so I dont know the difference between the various methods of molding,at least I tried ,which is more than any body else ,including at least one supposed expert on the subject did ...
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