Field protocol
Identify the material
Non-destructive checks first (look, bend, water drop). Optional acetone or gentle heat only on a hidden spot. Skip any step you cannot do. Then send the match into Find the Glue as Material B.
Step 1Start
Non-destructive check
Is this material a metal?
How to test
Look for shine and a cold touch. If unsure, skip — do not scrape a coating off.
Look at the material. Metals typically have a shiny, reflective surface and feel cold to touch. They are usually heavy for their size and make a ringing sound when tapped.