Paint, Resin & Polymer Compounding worked example

Cleaning Solvent Usage at 92% cleaning efficiency: a worked example

Push cleaning efficiency up to 92% and the picture changes. This example computes every intermediate figure at that operating point. you need a solvent buy quantity for a run of changeovers without shorting the line or overbuying drums

The inputs for this scenario

  • Vessel cleanouts to perform: 20 cleanouts (unchanged)
  • Solvent per cleanout: 8 gal / cleanout (unchanged)
  • Cleaning efficiency: 92 % (raised for this scenario; the documented default is 80)

Working through the calculation

  • Applying the documented formula (Theoretical solvent use = cleanouts to perform * solvent per cleanout) to the inputs above produces each figure below.
  • At this operating point the engine returns 174 gal for required cleaning solvent, the number this scenario is built around.
  • At this operating point the engine returns 160 gal for theoretical solvent use.
  • At this operating point the engine returns 13.91 gal for solvent loss allowance.
  • At this operating point the engine returns 92 % for cleaning efficiency.

How this compares with the baseline

  • Against the tool's baseline example, where cleaning efficiency sits at 80% and the headline result is 200 gal, this scenario comes in 13.04% below the baseline at 174 gal.
  • It computes the total solvent gallons required for a set of vessel cleanouts, dividing theoretical use by cleaning efficiency to account for losses, and reports the loss allowance. 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

  • Required cleaning solvent: 174 gal (headline result)
  • Theoretical solvent use: 160 gal
  • Solvent loss allowance: 13.91 gal
  • Cleaning efficiency: 92 %

Run it with your numbers

  • Every input above is editable in the live Cleaning Solvent Usage calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.