Adhesives, Sealants & Industrial Bonding worked example

Adhesive Changeover Time at 29% purge and cleaning allowance: a worked example

Suppose purge and cleaning allowance falls to 29%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate adhesive changeover workload from changeovers, changeover throughput, and purge/cleaning allowance.

The inputs for this scenario

  • Adhesive changeovers: 7 changeovers (held at the documented default)
  • Changeover completion pace: 0.06 changeovers/min (held at the documented default)
  • Purge/cleaning allowance: 29 % (the input this scenario stresses; the baseline uses 40)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base changeover time = adhesive changeovers รท changeover completion pace.
  • Adhesive changeover workload works out to 151 hr at these inputs, and this is the headline figure for the scenario.
  • Base changeover time works out to 117 hr at these inputs.
  • Purge/cleaning allowance works out to 29 % at these inputs.
  • Changeover completion pace works out to 0.06 changeovers/min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where purge and cleaning allowance sits at 40% and the headline result is 163 hr, this scenario comes in 7.86% below the baseline at 151 hr.
  • It computes total adhesive changeover labor hours by dividing changeovers by your completion pace, then adding a purge and cleaning allowance. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Adhesive changeover workload: 151 hr (headline result)
  • Base changeover time: 117 hr
  • Purge/cleaning allowance: 29 %
  • Changeover completion pace: 0.06 changeovers/min

Run it with your numbers

  • To rerun this with your own numbers, open the live Adhesive Changeover Time calculator, set purge and cleaning allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.