Material Drying
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Adhesion difference before and after PCTG injection coating
Fenómeno del problema
Adhesion between substrate and coating is good the first time but poor on repetition.
Análisis de la causa
Changes in substrate surface condition (moisture absorption, oxidation) affect coating adhesion.
Solución
Properly store substrates with shelf-life management; pre-treat before use (plasma, etc.).
Conclusión clave
PCTG coating adhesion depends on substrate condition management.
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