Composites, Fiberglass & Advanced Materials calculator
Prepreg Scrap Cost Calculator
Use this calculator to quantify carbon, fiberglass, or aramid prepreg loss caused by ply cutting, edge trim, carrier film damage, freezer exposure, or rejected kits.
What this calculator does
- Estimate the cost of prepreg scrap from cutting, nesting, trim, expired material, or layup damage.
- pricing prepreg scrap exposure in a composite build
- The result estimates prepreg scrap cost for the selected material and production scope.
Formula used
- Variable prepreg scrap cost = scrapped prepreg weight × prepreg material cost × scrap cost scope included
- Total prepreg scrap cost = variable prepreg scrap cost + scrap handling and disposition cost
Inputs explained
- scrapped prepreg weight: Use weighed scrap, cut-plan loss, expired material, rejected ply kits, or damaged roll weight.
- prepreg material cost: Use current frozen prepreg cost including freight, surcharges, and lot qualification where relevant.
- scrap cost scope included: Use 100% for all scrap in scope or less for one material, part family, or work order.
- scrap handling and disposition cost: Include quarantine, MRB, freezer transactions, disposal, and replacement kit handling.
How to use the result
- Use it to prioritize nesting improvements, freezer controls, shelf-life actions, and scrap reduction projects.
- Treat the result as a planning estimate until it is checked against the approved laminate schedule, material datasheets, ply books, resin batch records, tool condition, cure logs, inspection results, customer specification, and actual shop observations for the same part family and process.
Common questions
- What is the prepreg scrap cost calculator for? Use this calculator to quantify carbon, fiberglass, or aramid prepreg loss caused by ply cutting, edge trim, carrier film damage, freezer exposure, or rejected kits.
- What information should I enter? Enter scrapped prepreg weight, prepreg material cost, the included scope percentage, and any fixed tooling, setup, freight, qualification, or engineering cost assigned to the estimate.
- What does the result tell me? The result estimates prepreg scrap cost for the selected material and production scope.
- When is the result only an estimate? Treat the result as a planning estimate until it is checked against the approved laminate schedule, material datasheets, ply books, resin batch records, tool condition, cure logs, inspection results, customer specification, and actual shop observations for the same part family and process.
Last reviewed 2026-05-12.