Blow Molding & Hollow Plastic Products worked example
Trim Recovery Value at 63% recovery capture share: a worked example
Here is what the math looks like when conditions slip. We hold every other input steady and drop recovery capture share to 63%, then walk the calculation through step by step. Estimate recovered value from blow molding trim, flash, tails, and regrind using recovered material weight, value per unit, capture share, and fixed recovery costs.
The inputs for this scenario
- Recoverable trim and flash weight: 950 lb or kg (held at the documented default)
- Recovered resin value: 0.42 $ / lb or kg (held at the documented default)
- Recovery capture share: 63 % (the input this scenario stresses; the baseline uses 88)
- Fixed grinding and handling cost: 120 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Gross captured trim value = recoverable trim and flash weight × recovered resin value × recovery capture share.
- Net trim recovery value works out to 371 $ at these inputs, and this is the headline figure for the scenario.
- Recovered resin value works out to 0.39 $ / lb or kg at these inputs.
- Gross captured trim value works out to 251 $ at these inputs.
- Fixed grinding and handling cost works out to 120 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where recovery capture share sits at 88% and the headline result is 471 $, this scenario comes in 21.17% below the baseline at 371 $.
- The practical read: the gap between this scenario and the baseline is entirely attributable to recovery capture share, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats resin value as the price of virgin-equivalent material; in reality regrind often carries a property haircut, so the usable value per pound can be lower than the market resin price.
Results at a glance
- Net trim recovery value: 371 $ (headline result)
- Recovered resin value: 0.39 $ / lb or kg
- Gross captured trim value: 251 $
- Fixed grinding and handling cost: 120 $
Run it with your numbers
- To rerun this with your own numbers, open the live Trim Recovery Value calculator, set recovery capture share to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.