Adhesives, Sealants & Industrial Bonding worked example

Mix Ratio Error Risk with off-ratio cure severity of 4.5 1-10: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop off-ratio cure severity to 4.5 1-10, then walk the calculation through step by step. Score risk from two-part adhesive mix-ratio errors using severity, occurrence, and detection weakness.

The inputs for this scenario

  • Off-ratio cure severity: 4.5 1-10 (the input this scenario stresses; the baseline uses 9)
  • Mix error occurrence likelihood: 4 1-10 (held at the documented default)
  • Detection weakness: 7 1-10 (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Mix ratio error risk score = severity score × occurrence score × detection score.
  • Mix ratio error risk score works out to 4.95 score at these inputs, and this is the headline figure for the scenario.
  • Off-ratio cure severity works out to 4.5 1-10 at these inputs.
  • Mix error occurrence works out to 4 1-10 at these inputs.
  • Detection weakness works out to 7 1-10 at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where off-ratio cure severity sits at 9 1-10 and the headline result is 6.75 score, this scenario comes in 26.67% below the baseline at 4.95 score.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to off-ratio cure severity, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. The score is ordinal, not linear: a 6.75 is not literally three times worse than a 2.25, so use it to rank and trigger review, not as an absolute probability.

Results at a glance

  • Mix ratio error risk score: 4.95 score (headline result)
  • Off-ratio cure severity: 4.5 1-10
  • Mix error occurrence: 4 1-10
  • Detection weakness: 7 1-10

Run it with your numbers

  • To rerun this with your own numbers, open the live Mix Ratio Error Risk calculator, set off-ratio cure severity to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.