Adhesives, Sealants & Industrial Bonding worked example

Adhesive Inventory Shelf Life with usable adhesive inventory on hand of 600 cartridges, kg, or ml: a worked example

What does the result look like when usable adhesive inventory on hand reaches 600 cartridges, kg, or ml? The full calculation is worked below with real intermediate numbers. a purchasing or materials manager needs to decide whether adhesive inventory is safe for the demand plan

The inputs for this scenario

  • Usable adhesive inventory on hand: 600 cartridges, kg, or ml (raised for this scenario; the documented default is 240)
  • Average daily adhesive usage: 18 units/day (unchanged)
  • Shelf-life safety factor: 1.25 x (unchanged)

Working through the calculation

  • Applying the documented formula (Unprotected days of supply = usable adhesive inventory รท average daily adhesive usage) to the inputs above produces each figure below.
  • At this operating point the engine returns 26.67 days for shelf-life protected days, the number this scenario is built around.
  • At this operating point the engine returns 33.33 days for unprotected inventory days.
  • At this operating point the engine returns 600 units for usable adhesive inventory.
  • At this operating point the engine returns 18 units/day for average daily adhesive usage.

How this compares with the baseline

  • Against the tool's baseline example, where usable adhesive inventory on hand sits at 240 cartridges, kg, or ml and the headline result is 10.67 days, this scenario comes in 150% above the baseline at 26.67 days.
  • A figure at this level is achievable when usable adhesive inventory on hand is genuinely sustained, not just peaked for a shift. It assumes steady daily usage and a single blended safety factor; it does not track individual lot expiry dates, so a FIFO discipline is still needed to ensure the oldest material is consumed first.

Results at a glance

  • Shelf-life protected days: 26.67 days (headline result)
  • Unprotected inventory days: 33.33 days
  • Usable adhesive inventory: 600 units
  • Average daily adhesive usage: 18 units/day

Run it with your numbers

  • Every input above is editable in the live Adhesive Inventory Shelf Life calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.