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What are the common issues with laser marking additives?
Addition Ratio: Typically, 0.1%-0.3% of laser marking pigment powder and 1-3% of laser marking masterbatches are used, but adjust based on plastic type, color, thickness, and laser power through testing.
Compatibility: Poor compatibility can cause surface defects or reduced mechanical properties. Select compatible additives and control addition rates.
Color Changes: Additives may alter plastic color. Use color-matched additives or adjust formulations.
Storage Stability: Improper storage (moisture, oxidation) can degrade additive performance. Store in sealed, dry, cool, and dark conditions.
Environmental Safety: Some additives may contain heavy metals. Choose eco-friendly, compliant additives.