Blow Molding
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PVB vs EVA/SGP Comparison
Problem Phenomenon
Improper selection among PVB, EVA, SGP, application performance not satisfied or cost wasted.
Cause Analysis
PVB medium strength and moderate cost; EVA flexible, low cost, photovoltaic applications; SGP very high strength, high cost, structural glass; application scenario matching.; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based solely on experience
Solution
①Select type according to application requirements; ②Performance-cost balance; ③Standard and specification compliance; ④Supplier technical collaboration.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PVB selection should be compared with EVA and SGP; application scenario is the decision basis; collaborate to optimize the solution.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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