Composites, Fiberglass & Advanced Materials worked example

Fiberglass Resin Usage with mixed resin consumption rate of 19 lb / hr: a worked example

This worked example runs the fiberglass resin usage numbers for a tougher week than the baseline: mixed resin consumption rate of 19 lb / hr instead of the typical 38 lb / hr. Estimate resin demand and cost for fiberglass wet layup, chop spray, RTM, or infusion work.

The inputs for this scenario

  • Mixed resin consumption rate: 19 lb / hr (the input this scenario stresses; the baseline uses 38)
  • Lamination or infusion runtime: 6.5 hr (held at the documented default)
  • Mixed (catalyzed) resin cost: 5.2 $ / lb (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Fiberglass Resin Usage consumed = mixed resin use rate × lamination or infusion runtime.
  • fiberglass resin usage consumed works out to 124 lb at these inputs, and this is the headline figure for the scenario.
  • total fiberglass resin usage cost works out to 642 $ at these inputs.
  • lamination or infusion runtime works out to 6.5 hr at these inputs.
  • mixed resin cost works out to 5.2 $ / unit at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where mixed resin consumption rate sits at 38 lb / hr and the headline result is 247 lb, this scenario comes in 50% below the baseline at 124 lb.
  • Use it when budgeting a lamination or infusion run, sizing a resin order, or checking resin cost on a quote. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • fiberglass resin usage consumed: 124 lb (headline result)
  • total fiberglass resin usage cost: 642 $
  • lamination or infusion runtime: 6.5 hr
  • mixed resin cost: 5.2 $ / unit

Run it with your numbers

  • To rerun this with your own numbers, open the live Fiberglass Resin Usage calculator, set mixed resin consumption rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.