Molds & Tooling
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PC/ABS product tiger stripe
Problem Phenomenon
Alternating light and dark tiger-like stripes appear on the product surface.
Cause Analysis
Stick-slip motion of the melt front during mold filling (slip-stick effect) causes periodic marks.
Solution
Increase mold temperature 60-90°C; increase injection speed; enlarge the gate.
Key Takeaway
PC/ABS tiger stripes are a manifestation of unstable mold filling.
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