Same plastic color. Multiple molds.

[Steve J]

Getting ready for my first multiple mold pour.
I am thinking it would be of great help if I would know just how much plastic is needed for each mold.  Experience will be the final answer but is there any reason the mold makers couldn't give this information with each of their molds?

[superharmonix]

When I was first starting out I used scrap to determine the amount per mold.  Lots of factors to be considered.

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[Mike J]

Remember some plastic always cools down and solidifies in the injector. How much depends on how warm your injector and your plastic are. Even if you know the molds you want to shoot take a total of 4 Oz of plastic to fill you won't fill them with a 4 Oz injector.