Thermoforming
3 Aufrufe
Poor Electroplating/Spraying Adhesion of acrylonitrile-butadiene-styrene copolymer Products
Problembeschreibung
After electroplating or spraying, the coating adhesion of the product is poor, and blistering or peeling easily occurs.
Ursachenanalyse
（1）The product surface tension is insufficient, and the coating is difficult to adhere
（2）The product surface has release agent or oil residue
（3）The internal stress of the product is large, affecting the coating adhesion
（4）The pretreatment before electroplating/spraying is insufficient
（5）The coating material does not match the base material
Lösung
（1）Perform corona or flame treatment on the product surface
（2）Ensure the product surface is clean and free of release agent
（3）Reduce the internal stress of the product (annealing treatment)
（4）Strengthen the pretreatment (degreasing, roughening, etc.)
（5）Select a matching coating material
Wichtigste Erkenntnis
Electroplating and spraying adhesion is determined by the surface energy and surface state.
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