How do you calculate a bonding process risk score?

Multiply the severity, occurrence, and detection ratings, each on a 1-to-10 scale. Severity 8, occurrence 5, and detection 6 give a raw RPN of 240, which this tool scales to a 6.45 normalized risk score for easy comparison.

What is a good bonding risk score?

Lower is better. There is no universal pass line, but teams commonly act on the highest RPNs first and set an internal threshold; a high score driven by weak detection should be escalated even if occurrence looks low.

What does the detection weakness rating mean?

It rates how likely your controls are to miss a bond defect before release, where 10 means almost certainly undetected. Adhesive voids and weak primer are often invisible, so detection frequently drives bonding risk more than occurrence does.

Why multiply instead of add the three ratings?

Multiplication makes risk explode when all three axes are bad and lets a single severe, undetected failure dominate the ranking. A severity of 8 paired with poor detection of 6 carries far more weight multiplied than summed.

How do I lower a bonding risk score?

Attack the largest factor. You usually cannot change severity, so reduce occurrence with better surface prep and process control, or cut detection weakness by adding proof-load tests, ultrasonic inspection, or primer cure verification.

Is this the same as FMEA RPN?

Yes, it follows the classic FMEA risk priority number logic of severity times occurrence times detection, presented as a normalized score so you can rank bonding failure modes consistently across a process.

Adhesives, Sealants & Industrial Bonding calculator

Bonding Process Risk Score Calculator

Bonding Process Risk Score is an FMEA-style risk priority number for adhesive and sealant processes, built by scoring how bad a bond failure is, how often the defect occurs, and how poorly your controls catch it. Quality and bonding-process engineers use it to rank failure modes, debonds, voids, weak primer, contaminated surfaces, so limited engineering time goes to the worst offenders first. It matters because a bond can pass visual inspection and still fail in service, and the detection axis forces you to confront how blind your process really is. The single number makes risk comparable across modes and easy to escalate before product ships.

What this calculator does

Score bonding process risk from failure severity, defect occurrence, and detection strength before release.
a quality manager needs to prioritize bonding process controls for a new or unstable adhesive operation
It computes a risk priority number by multiplying bond failure severity, defect occurrence, and detection weakness ratings together.

Formula used

Bonding process risk score = severity score × occurrence score × detection score
Higher scores identify bonding issues that need engineering review, process controls, or supplier action before release.

Inputs explained

Bond failure severity:
Bond defect occurrence:
Detection weakness:

How to use the result

Use it during a process FMEA, a bonding line audit, or a containment review to prioritize which failure modes get engineering action first.
The 1-10 ratings are judgment-based, so two engineers can score the same mode differently; the score ranks risk but does not by itself prove a process is safe.

Current U.S. benchmarks

The producer price index for industrial chemicals stands at 344.336 (BLS, May 2026), up 16.1% 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

How do you calculate a bonding process risk score? Multiply the severity, occurrence, and detection ratings, each on a 1-to-10 scale. Severity 8, occurrence 5, and detection 6 give a raw RPN of 240, which this tool scales to a 6.45 normalized risk score for easy comparison.
What is a good bonding risk score? Lower is better. There is no universal pass line, but teams commonly act on the highest RPNs first and set an internal threshold; a high score driven by weak detection should be escalated even if occurrence looks low.
What does the detection weakness rating mean? It rates how likely your controls are to miss a bond defect before release, where 10 means almost certainly undetected. Adhesive voids and weak primer are often invisible, so detection frequently drives bonding risk more than occurrence does.
Why multiply instead of add the three ratings? Multiplication makes risk explode when all three axes are bad and lets a single severe, undetected failure dominate the ranking. A severity of 8 paired with poor detection of 6 carries far more weight multiplied than summed.
How do I lower a bonding risk score? Attack the largest factor. You usually cannot change severity, so reduce occurrence with better surface prep and process control, or cut detection weakness by adding proof-load tests, ultrasonic inspection, or primer cure verification.

Last reviewed 2026-05-12.