When I opened the package, the painted surfaces were stuck together. I will explain the cooling time and loading conditions to prevent blocking issues.
When I opened the package, the painted surfaces were stuck together. Even though they should be cured, why are they sticking? ────────────── ■Cause of Occurrence Even though the paint film is cured immediately after baking, the internal temperature remains high and in a soft state. When pressure is applied, the surfaces come into close contact, leading to blocking. ■Truth The paint film becomes completely stable only after the material temperature drops below 40 degrees. Thick die-cast parts maintain an internal temperature above 60 degrees even when the surface cools. In summer, the room temperature is high, and the natural cooling time takes twice as long as expected. ■Improvement Measures Confirm that the material temperature is below 40 degrees before proceeding to packaging. It is also effective to manage the film thickness not at the upper limit but closer to the target value. Please utilize the management materials for cooling time and loading conditions.
Inquire About This Product
Related Videos
basic information
Corresponding materials: Iron, stainless steel, aluminum, aluminum die-cast / Baking temperature: 140-200 degrees / Cooling management: Material temperature below 40 degrees / Film thickness: 20-40 microns / Packaging: Cushioning material, individual partition support
Price range
Delivery Time
Applications/Examples of results
Powder coating of parts for stacked packaging, such as sheet metal covers, office furniture components, store fixtures, and home appliance housings. We have a track record of reviewing the cooling process as a measure against summer blocking claims.
catalog（1）
Download All Catalogs
Company information
We are not just a "subcontracted painting factory." Established in 1958, our company has a foundation of painting technology and also specializes in chemical treatment, stripping, and cleaning, functioning as the "external surface treatment department" in your organizational chart. Based on our philosophy of "preparation is eight-tenths of the work," we emphasize participation from the "upstream process" before the drawings are finalized. We conduct test painting on a wide range of metals and difficult materials, and we produce the entire process from assembly, packaging, to delivery, thereby reducing your management workload. Additionally, by being able to perform zinc phosphate treatment in-house, we achieve stable painting quality. Furthermore, our micro-heating stripping technology, which does not use chemicals, maintains the electrical state of the "jigs (hangers)" that influence painting quality. Our approach of "pre-treatment determines painting quality" ensures the stability of the paint film during mass production. Rather than simply "applying specified standards," we work backwards to achieve optimal painting specifications and prevent scratches during transportation, sparing no effort in thorough discussions from the outset. This diligent preparation is the shortest path to preventing rework and minimizing total costs. From the development stage, please utilize the expertise of our specialists as part of your production line.
![[Heat Shield Product Comparison] Rooftop Natural Energy Applied Heat Shield Sheet 'Cool Roof'](https://image.mono.ipros.com/public/product/image/6b6/2000628115/IPROS79846363654755276596.png?w=280&h=280)
