Production & Quality
4 조회수
PETG product yellowing after long-term light exposure
문제 현상
The product color yellows under long-term light exposure, and appearance quality declines.
원인 분석
Ultraviolet and short-wave components of visible light cause photo-oxidative degradation, lacking light stabilizer protection.
해결 방법
Add UV absorber and HALS; UV protective coating; avoid long-term direct sunlight.
핵심 요약
PETG light stability needs to be enhanced by additives or coatings.
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