Adhesives, Sealants & Industrial Bonding worked example

Open Time Window at 11% open-time safety margin: a worked example

This worked example runs the open time window numbers for a tougher week than the baseline: 11% open-time safety margin instead of the typical 15%. Estimate usable open time for adhesive-coated parts from staged assemblies, assembly pace, and shop-floor allowance.

The inputs for this scenario

  • Coated parts waiting to be joined: 90 parts (held at the documented default)
  • Assembly mating throughput: 3.2 parts/min (held at the documented default)
  • Open-time safety margin: 11 % (the input this scenario stresses; the baseline uses 15)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base join queue time = coated parts waiting รท assembly joining pace.
  • Required open-time window works out to 31.22 hr at these inputs, and this is the headline figure for the scenario.
  • Base join queue time works out to 28.13 hr at these inputs.
  • Open-time allowance applied works out to 11 % at these inputs.
  • Assembly joining pace works out to 3.2 parts/min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where open-time safety margin sits at 15% and the headline result is 32.34 hr, this scenario comes in 3.48% below the baseline at 31.22 hr.
  • Use it when selecting an adhesive for a batch assembly, sizing a coating batch, or deciding whether a line slowdown will outrun the adhesive's published open time. 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

  • Required open-time window: 31.22 hr (headline result)
  • Base join queue time: 28.13 hr
  • Open-time allowance applied: 11 %
  • Assembly joining pace: 3.2 parts/min

Run it with your numbers

  • To rerun this with your own numbers, open the live Open Time Window calculator, set open-time safety margin to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.