Molds & Tooling
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Glass Fibre poor surface gloss
Problem Phenomenon
Glass Fibre product surface gloss <60%, below the 80% requirement, appearance dull
Cause Analysis
Mold surface rough Ra>0.4μm; Glass Fibre crystallinity high, surface microcrystals scatter light; cooling rate improper
Solution
1) Polish mold to Ra<0.1μm mirror surface; 2) raise mold temperature to delay crystallization and reduce scattering; 3) add nucleating agent to control crystal size
Key Takeaway
Poor gloss is caused by mold roughness and crystallization scattering; polishing mold and controlling crystallization are key
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