Material Analysis
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PETG product surface hardness test low
Fenómeno do problema
The pencil hardness test is lower than expected (below HB), easily scratched.
Análise das causas
No surface hardening treatment after molding, the raw material grade itself is soft in hardness.
Solução
Use high-hardness PETG grades; treat the product surface with UV hard coating or silicon hard coating.
Conclusão principal
PETG surface hardness can be improved by coating.
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