Adhesives, Sealants & Industrial Bonding worked example

Open Time Window at 17% open-time safety margin: a worked example

What does the result look like when open-time safety margin reaches 17%? The full calculation is worked below with real intermediate numbers. a process engineer needs to keep assembly timing inside the adhesive open-time limit

The inputs for this scenario

  • Coated parts waiting to be joined: 90 parts (unchanged)
  • Assembly mating throughput: 3.2 parts/min (unchanged)
  • Open-time safety margin: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base join queue time = coated parts waiting รท assembly joining pace) to the inputs above produces each figure below.
  • At this operating point the engine returns 32.91 hr for required open-time window, the number this scenario is built around.
  • At this operating point the engine returns 28.13 hr for base join queue time.
  • At this operating point the engine returns 17 % for open-time allowance applied.
  • At this operating point the engine returns 3.2 parts/min for assembly joining pace.

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 1.74% above the baseline at 32.91 hr.
  • A figure at this level is achievable when open-time safety margin is genuinely sustained, not just peaked for a shift. Published open time is measured at standard lab temperature and humidity; on a warm or dry floor the real window shrinks, so compare the required window against the derated open time, not the datasheet number.

Results at a glance

  • Required open-time window: 32.91 hr (headline result)
  • Base join queue time: 28.13 hr
  • Open-time allowance applied: 17 %
  • Assembly joining pace: 3.2 parts/min

Run it with your numbers

  • Every input above is editable in the live Open Time Window calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.