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Injection molding · Materials

Masterbatch Dosage Calculator

Calculate masterbatch mass from base-resin mass and a supplier-specified dosage. Use this as a documented planning estimate, then validate it against the actual machine, mold, resin, and process.

Formula and method

Masterbatch mass = base resin mass x dosage percentage.

Use the masterbatch supplier’s compatible grade and dosage instruction, including whether the percentage is on let-down or total blend.

Inputs and units

Use controlled records, CAD, measured production data, the exact resin data sheet, or machine-maker specifications. Keep the material and time basis with the result.

Worked example

200 kg base resin at 2% dosage = 4 kg masterbatch.

What the result supports

This result is a first-pass screen for materials planning. Use it to identify the next record or engineering check, not as a release decision.

Sanity check

Check the unit basis and whether all quantities describe the same cavity, shot, machine, or production window before comparing values.

Important limitation

Colour strength and additive performance require supplier validation and trials.

Reference: BASF Ultradur processing notes.

Next calculation

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FAQ

What must be checked after using masterbatch dosage calculator?

Retain the input source and compare this estimate with the applicable machine, mold, supplier, or production record before relying on it.