Production & Quality
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TPU Temperature Resistance Upper Limit
Problem Phenomenon
TPU products soften and deform after long-term use in high-temperature environments, with performance decay
Cause Analysis
TPU can withstand 110-120°C short-term, but the upper limit of long-term continuous use temperature is generally 80-90°C; above this temperature the hard segments soften and physical performance significantly decays
Solution
①Long-term use temperature controlled within 80-90°C; ②Evaluate other materials for high-temperature scenarios; ③Distinguish and check short-term peaks versus long-term continuous use; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The temperature resistance upper limit of TPU is clear; 80-90°C is the long-term red line, and short-term 110-120°C does not mean long-term usability; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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