pp material? How to solve it? What is the method?

the sprayed paint is not strong on the wall surface or material, it will fall off after the hand is buckled or scratched, and it can be scraped off with a little strength after baking. This problem is more common in PP plastic surface painting technology. I will master the reason why PP plastic is sprayed with paint and how Sai PP adhesion promoter improves the adhesion between paint and PP plastic without paint peeling.

the adhesion of paint film is the main index value of paint coating. The solid level of paint film on the wall surface or material of PP material is the basic of paint to complete its functional effect. Therefore, in the field of coating, coating adhesion is of general concern. Considering the characteristics of raw materials and improving the surface characteristics of materials, PP modifier improves the adhesion characteristics between plate and paint film to deal with the adhesion problem of PP spraying coating from the root.

PP materials are widely used in small toys, automobile rear bumpers, artworks, electrical products and other industries. In the specific production, manufacture and application of coating on the surface of PP materials, the paint film sometimes falls off in a large area, bubbles in some parts, poor adhesion and even falls off. This situation prompted the PP surface painting technology loss of film maintenance and decoration effect.

PP plastic coating is very prone to paint peeling. Apart from the adhesion of the paint itself, the surface energy of PP plastic is low and non-polar at first, which endangers the adhesion of the paint film on the wall surface or material. Secondly, plastic uses remover during injection molding, which harms the coating film of paint, resulting in poor coating and harms adhesion. There are also unstable painting after work, and variability in film thickness and color deviation manipulation.

comprehensive analysis, the cleaning process of paint and material surface and the form of painting can be adjusted, but the characteristics of the material itself are always the same, so the basic method that can effectively deal with PP plastic adhesion is also based onSai PP adhesion promoterpainting is applied to the improved wall surface or between the material and the paint to improve the adhesion of the coating. It is suitable for hand spraying and automatic production line coating, so as to promote the surface coating of the coated PP material to obtain sufficient maintenance and decoration functions and service life in the application scene.