By Mike Moussa, PE — If your parts go inside aircraft, trains, buses, or ships, they need to meet flame, smoke, and toxicity (FST) requirements. Here’s what you need to know about 3D printing FST-compliant components. What Is FST Compliance? FST stands for Flame, Smoke, and Toxicity — a set of performance requirements for materials […]
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By Mike Moussa, PE — ULTEM (polyetherimide/PEI) is the material you use when nothing else survives. Here’s a deep dive on what makes it special, where it excels, and when it’s worth the premium. What Is ULTEM? ULTEM is a family of high-performance thermoplastics made by SABIC (originally developed by GE Plastics). The two grades […]