{"id":5052,"date":"2026-08-04T01:57:23","date_gmt":"2026-08-04T01:57:23","guid":{"rendered":"https:\/\/ceshi.baoxuanmetal.com\/?p=5052"},"modified":"2026-08-15T07:03:53","modified_gmt":"2026-08-15T07:03:53","slug":"sheet-metal-moisture-protection-checklist","status":"publish","type":"post","link":"https:\/\/ceshi.baoxuanmetal.com\/de\/sheet-metal-moisture-protection-checklist\/","title":{"rendered":"Sheet Metal Moisture Protection Checklist for Storage and Shipping"},"content":{"rendered":"

A batch of powder-coated sheet metal enclosures<\/strong><\/a> arrives at your assembly facility. The outer cartons look fine.<\/p>\n

But when the line opens them, brown spots have formed along bent edges and around mounting holes<\/strong> \u2014 areas where the coating was thinnest or where handling scratched through it.<\/p>\n

\"Powder-coated

This image shows a powder-coated enclosure panel where brown corrosion has formed along bent edges and around mounting holes \u2014 the areas most vulnerable to coating damage and moisture penetration.<\/span><\/p><\/div>\n

The parts are not scrap yet, but they need rework before they can reach your customer. You have just lost two weeks and a margin you cannot recover<\/strong>.<\/p>\n

This scenario is not rare.<\/p>\n

Moisture-related corrosion during storage and transit<\/strong> is one of the most common \u2014 and most preventable \u2014 causes of sheet metal part rejection.<\/p>\n

The fix is not a better box or a more expensive coating. It is a systematic approach that starts before the part is even packed<\/strong>.<\/p>\n

Why Sheet Metal Parts Corrode in Storage and Transit<\/h2>\n

Corrosion on steel and aluminum parts requires three things:<\/p>\n