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Colorants Precompounded
There are basically two ways to get colored injection molded parts, and in this video installment Gus Breiland discusses precompouned resins. The simplest is to mix dye pellets into a batch of base resin pellets. As the pellets are heated and compressed for injection into the mold, the base resin and dye pellets melt and mix together before being injected into the mold. The other way is to order pre-compounded pellets in the exact color you want; for example, a standard PMS color or match to a sample swatch.
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