Plastic packaging resin material budgeting

Plan resin mass and blend costs while separating material estimates from finished-container prices.

Work through the task

  1. Use actual part mass and the process-yield convention required by the selected calculation. Do not infer mass from container capacity.
  2. Build blend cost from verified component prices and fractions. Recycled-content percentage is not itself an environmental impact calculation.
  3. Label resin-only estimates clearly and obtain conversion, decoration and complete-container quotes before comparing finished supplier offers.

Tools for this job

A worked example

Ten thousand retained parts at 20 g contain 200 kg polymer. A simple mass-weighted blend of 30% material at EUR 1/kg and 70% at EUR 1.5/kg costs EUR 1.35/kg, before process and conversion charges.

Use your supplier specification and quotation. These numbers demonstrate the arithmetic; they are not market prices or a packaging suitability assessment.

Checks before you decide

  • Actual part weight and process yield
  • Blend fractions and component prices
  • Resin estimate versus finished item quote