Extrusion & Post
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TPE Delamination (Excessive Release Agent)
Problem Phenomenon
Layered peeling appears on products after using release agent.
Cause Analysis
Excessive release agent sprayed on the cavity surface forms an isolation film, hindering interlayer bonding of the melt.; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience
Solution
①Control the release agent dosage; ②spray a uniform thin layer; ③prioritize process improvement for demolding; ④clean cavity residue.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Excessive release agent is a hidden cause of delamination; do not use it if possible, and control the amount if used.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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