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How much resin do I need for a simple injection moulded extrusion?

How much resin do I need for a simple injection moulded extrusion?

How much resin do I need for a simple injection moulded extrusion?

(OP)
I am looking for some multiplier to help ensure I request the proper amount of resin for a part run.  The material has various colorants added.

I have the crossectional area of the part/die and I know the length of my extrusion.  With this I can calculate the volume of plastic making up my part.  How do I account for losses in the manufacturing process (mixing, heating, drool, whatever, ...)?

Would it be reasonable to add 5% to the volume of my parts, or should it be more like 25%?

RE: How much resin do I need for a simple injection moulded extrusion?

Assuming this is the first time they've run the material get plenty extra. Ask the extrusion company and plan to have at least double the amount on hand.

What does "injection moulded extrusion" mean? From the description it seems you mean extrusion.

Chris DeArmitt PhD FRSC CChem

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