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Topic Tag: injection

Viewing 30 topics - 1 through 30 (of 137 total)
I'm a novice at injecting; help! I'm so stoked to have gotten an injection machine and mold. I have been trialing using shredded polypropylene, temp set at 290 upper panel, 295 lower panel (though the thermometer reads 450 and 300).  I let the plastic sit in the machine x 12 minutes.  Creations still all look quite lumpy.  Does anyone else have this problem?  What's the solution?
Viewing 30 topics - 1 through 30 (of 137 total)
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