Molds & Tooling
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ASA Painting and Bonding
Problem Phenomenon
【Problem Phenomenon】ASA products need painting for color change or bonding for assembly, process compatibility unclear
Cause Analysis
ASA surface can be painted and bonded, easier to handle than most polyolefins; cleaning to remove mold release agent before painting is sufficient, plasma treatment can be used for special requirements; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Clean and do adhesion test before painting; choose acrylic or epoxy adhesive for bonding; surface activation for high-requirement occasions; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA can be painted and bonded, easy to serve, cleaning and activation by grade; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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