Gaskets, Seals, O-Rings & Elastomer Components worked example

Flash Scrap Cost at 110% scrap cost capture share: a worked example

Push scrap cost capture share up to 110% and the picture changes. This example computes every intermediate figure at that operating point. Use it when molding, trimming, or estimating teams need to understand how flash weight, compound cost, and scrap capture affect cost per molded seal or gasket.

The inputs for this scenario

  • Molded parts with flash scrap: 5,200 parts (unchanged)
  • Flash and trim scrap cost per part: 0.18 $ / part (unchanged)
  • Scrap cost capture share: 110 % (raised for this scenario; the documented default is 100)
  • Fixed scrap handling cost: 275 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable flash scrap cost = molded parts with flash scrap × flash and trim scrap cost per part × scrap cost capture share) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,305 $ for total flash scrap cost, the number this scenario is built around.
  • At this operating point the engine returns 0.25 $ / piece for flash scrap cost per molded part.
  • At this operating point the engine returns 1,030 $ for variable flash scrap cost.
  • At this operating point the engine returns 275 $ for fixed scrap handling cost.

How this compares with the baseline

  • Against the tool's baseline example, where scrap cost capture share sits at 100% and the headline result is 1,211 $, this scenario comes in 7.73% above the baseline at 1,305 $.
  • It computes the total cost of flash and trim scrap for a molding run by multiplying part volume, per-part deflash cost, and a capture share, then adding fixed scrap handling overhead. 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 flash scrap cost: 1,305 $ (headline result)
  • Flash scrap cost per molded part: 0.25 $ / piece
  • Variable flash scrap cost: 1,030 $
  • Fixed scrap handling cost: 275 $

Run it with your numbers

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

Last reviewed 2026-05-12.