Adhesives, Sealants & Industrial Bonding calculator

Pot Life Usage Calculator

Estimate how much of a mixed batch can be applied before its qualified working time ends. Enter remaining mass, observed mass dispensing rate, pot life and elapsed time.

What this calculator does

  • Estimate how much mixed adhesive you can dispense before its qualified pot-life window closes.

Formula used

  • Remaining time = max(pot life − elapsed time, 0)
  • Usable mass = min(remaining mass, dispense rate × remaining time)
  • Residual mass = remaining mass − usable mass
  • Usable share = usable mass ÷ remaining mass × 100

Inputs explained

  • Remaining Mixed Mass: Mixed adhesive mass still available for dispensing now.
  • Mixed Adhesive Dispense Rate: Observed adhesive mass dispensed per operating hour.
  • Qualified Pot-Life Window: Qualified duration for the original mixed batch, container and temperature.
  • Time Since Mixing: Elapsed time from the specified start of the mixing clock.

How to use the result

  • Best suited to mixed batch Sizing, Pot-Life waste planning.
  • Changing mixed batch size can change pot life and requires revalidation. Does not predict viscosity growth, gelation or chemical conversion.

Current U.S. benchmarks

  • The producer price index for industrial chemicals stands at 336.006 (BLS, Aug 2026), up 13.3% from a year earlier. Quotes priced off last quarter's material cost miss this move.
  • The U.S. has 11,391 plastics and rubber products establishments employing about 815,988 workers (Census County Business Patterns, 2023).

Common questions

  • Why does batch size matter? Reaction heat can shorten the working time of a larger mixed mass. Qualify pot life for the original mixed batch and container, even after some adhesive has been dispensed.
  • Can I enter a volume dispensing rate? No. This model uses grams throughout. Convert the measured volume to mass with the mixed adhesive density first.
  • What happens after the window expires? Remaining time and usable mass become zero. The result does not authorize use of material beyond its qualified working life.
  • Is a faster rate always a suitable fix? No. The required shot size and application quality still govern dispensing. Use a measured rate that your assembly process can sustain.

Last reviewed 2026-10-01.