Temperature difference between cold unit shell and ambient air causes cabinet condensation. Continuous dripping will corrode metal casing and wet nearby insulation panels. Condensation mainly appears on outer casing, pipe joints and uncovered metal surfaces when warehouse door opens frequently and ambient humidity is high. Xindacool air cooler uses closed-cell polyurethane foam for casing insulation, wrapping all metal substrates to isolate cold metal from humid outside air. Insulation layer surface must be fully sealed. Tiny cracks or gaps allow water vapor penetration, leading to hidden condensation under the insulation skin. Outer protective skin of insulation needs good water vapor resistance. Ordinary thin plastic film will age and lose vapor barrier ability after years of operation. Mechanical damage during installation tears the insulation cover. Damaged spots become starting points for hidden moisture accumulation and mold growth. Even with full insulation, ventilation around the air cooler installation space helps reduce local humidity and suppress surface dew formation. When condensation occurs inside insulation layer, the foam gradually loses thermal performance. The hidden damp area may develop ice in low temperature seasons. Annual inspection should check casing surface for water stains, blistering or peeling insulation. Early repair prevents further moisture infiltration. When replacing damaged insulation sections, the metal base must be fully dried first. Trapped moisture will remain and reoccur after new covering. For coastal cold storage projects, salt in humid air accelerates metal corrosion under wet insulation. Reinforced vapor barrier coating is required.
Q: What causes cabinet condensation of air cooler? A: The temperature difference between cold metal shell and humid ambient air makes water vapor condense into liquid. Q: What material is used for casing thermal insulation? A: Closed-cell polyurethane foam wraps metal parts and blocks cold transfer outward. Q: Why seal all gaps on insulation surface? A: Prevent water vapor from penetrating and forming hidden condensation under the protective layer. Q: What sign shows insulation failure? A: Surface water stains, blistering or peeling of the outer protective skin. Q: How coastal environment influences cabinet insulation? A: Salt in humid air speeds up metal corrosion once moisture enters the insulation layer. Q: Can damaged insulation be patched directly without drying metal base? A: No, residual moisture will stay inside and condensation reappear quickly. Q: What effect of trapped moisture inside foam insulation? A: Insulation performance degrades, and internal water may freeze in cold periods. Q: How to reduce surface dew around the suspended air cooler? A: Maintain proper surrounding ventilation to lower local air humidity.
Address: No. 866, Putian Avenue, Sanjiang Sub-district, Shengzhou City, Zhejiang Province
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Landline: 0575-83268796
Email:michelle@xindacool.com
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