Injection Molding
5 görüntüleme
PETG and elastomer overmolding poor bonding
Sorun Belirtisi
When overmolding TPE/TPU elastomer onto a rigid substrate, the bonding force is insufficient.
Neden Analizi
The substrate surface cools quickly and wets poorly, the materials are incompatible, and the substrate surface is untreated.
Çözüm
Plasma or primer pretreatment of the substrate surface; increase the overmolding material temperature; select a compatible elastomer.
Temel Çıkarım
PETG overmolding requires substrate pretreatment and material selection.
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