原子灰厂家—长兴宝迪环保科技有限公司【官网】

Today, the editor of the atomic ash manufacturer saw someone online asking why atomic ash cracking occurs during spraying? In the paint repair area, the atomic gray filling area or primer layer cracks, resulting in cracking of the top paint layer. Let's have a detailed understanding with the atomic gray manufacturer Changxing Baodi Environmental Protection Technology Co., Ltd.

 

1. The use of non compliant diluents in the primer resulted in the primer layer not drying easily or cracking due to excessive shrinkage.

 

2. The transition zone between the atomic gray or intermediate primer layer and the old paint layer, i.e. the area around the feather edge, is not adequately treated, resulting in the atomic gray coating not tightly bonded and cracking. 600 grit sandpaper should be used to avoid bringing solvent into the deep scratch layer of the lower layer.

 

3. The atomic gray layer or intermediate primer layer is too thick, and the drying time between each layer is not sufficient, causing the surface of the atomic gray layer or intermediate primer layer to dry and the bottom layer to become soft, leading to cracking of the atomic gray layer or intermediate primer layer. Therefore, in atomic ash scraping or primer spraying, thin layers should be applied multiple times, leaving sufficient drying time according to climatic conditions.