Freshly extruded nylon tubing is "Dry As Molded" (DAM) and is at its most brittle. As it "matures" by absorbing ambient moisture, it undergoes several shifts:
What’s the Difference?™: Nylon 6 vs. Nylon 66 - UL Prospector nylon matures tube
: Impact resistance can improve by up to 10 times as the material absorbs water. Freshly extruded nylon tubing is "Dry As Molded"
: Depending on wall thickness and humidity, reaching a stable "mature" state can take anywhere from days to several weeks . 2. Guide to Managing Nylon Tubing Life Cycles Characteristics Recommendations Initial (DAM) High stiffness, low impact resistance, maximum brittleness. Avoid high-impact installation immediately after extrusion. Mature (Conditioned) Balanced strength and flexibility; dimensions are stable. low impact resistance