Abstract:This article delves into the issue of whitening in polyurethane paint films, aiming to identify its root causes and propose corresponding improvement strategies. We recognize that whitening is often caused by a combination of factors, including environmental conditions, substrate moisture content, excessive filler in the primer, and the presence of low-melting-point components in the resin. To effectively address this issue, we propose a series of practical preventive measures, such as improving the application environment, controlling substrate moisture content, adjusting primer filler content, and strictly monitoring resin quality.

Brief Introduction to High-Temperature Paint Application Methods.

Paint Factory Inspection: Detailed Description of Inspection Items

Before painting, steel structures must undergo a series of pre-treatment processes to remove surface scale, rust, soluble salts, zinc salts, oil, weld smoke, markings, old coatings, and dust. This ensures the paint can fully adhere and perform effectively.

Plastic sheets are a common decorative material widely used in furniture, decorations, appliances, and other fields. The surface of plastic sheets is smooth, offering a certain level of wear resistance and water resistance. However, plastic sheets often come in limited colors. If you want to change their appearance, painting is an effective solution.