Rubber, Tires, Foam & Elastomer Manufacturing worked example

Elastomer Scrap Cost at 92% non-recoverable share: a worked example

Push non-recoverable share up to 92% and the picture changes. This example computes every intermediate figure at that operating point. A process engineer uses it to quantify the dollar impact of flash, purge and reject rates on a rubber molding line.

The inputs for this scenario

  • Scrap elastomer weight: 120 kg (unchanged)
  • Loaded compound cost: 5.2 $/kg (unchanged)
  • Non-recoverable (non-regrind) share: 92 % (raised for this scenario; the documented default is 80)
  • Disposal and handling charge: 150 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Scrap cost = scrap kg x loaded cost/kg x non-recoverable% + disposal charge) to the inputs above produces each figure below.
  • At this operating point the engine returns 724 $ for total elastomer scrap cost, the number this scenario is built around.
  • At this operating point the engine returns 6.03 $ / piece for elastomer scrap cost per unit.
  • At this operating point the engine returns 574 $ for variable elastomer scrap cost.
  • At this operating point the engine returns 150 $ for fixed elastomer scrap cost adder.

How this compares with the baseline

  • Against the tool's baseline example, where non-recoverable share sits at 80% and the headline result is 649 $, this scenario comes in 11.53% above the baseline at 724 $.
  • It computes total scrap cost as non-recoverable material value plus a fixed disposal charge, and divides by weight for a cost-per-kg figure. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Total elastomer scrap cost: 724 $ (headline result)
  • Elastomer scrap cost per unit: 6.03 $ / piece
  • Variable elastomer scrap cost: 574 $
  • Fixed elastomer scrap cost adder: 150 $

Run it with your numbers

  • Every input above is editable in the live Elastomer Scrap Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.