Pinhole defect of powder coating

문제 현상

Dense pinholes appear in powder coating, anti-corrosion performance decreases

원인 분석

Powder absorbs moisture, high water content, uneven electrostatic deposition

해결 방법

Pre-dry powder at 80-100C for 2h, store sealed

핵심 요약

Powder moisture is the main source of coating pinholes

ECTFEpinhole

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