The crew digs into the messy truth about material safety—how to really research what’s safe to laser and what can gas you (or your machine). Alex walks through the process step-by-step: using CAS registry numbers, reading modern SDS sheets, and understanding decomposition products instead of online hearsay. They talk about why “no data available” isn’t the same as “safe,” how to tell when a material’s dangerous even without a fire, and how to talk to customers who bring in mystery items. Between the chemistry talk, they also update listeners on Laser Everything’s channel lineup, the Ultimate Guide to Laser Processing series, and a fresh CO₂ Galvo material library update.

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