Surface treatment process and surface thickness of steel and wood doors

Nowadays, most households use steel and wood doors, and the quality of steel and wood doors, also known as armored doors, directly affects safety issues when entering households. There are many brands of steel and wood doors in the market, and the surface treatment process of different brands and styles of steel and wood doors varies. In order to better and more professionally choose steel and wood doors, it is necessary for users to understand the surface treatment process and thickness of steel and wood doors. After understanding this knowledge, choosing steel and wood doors will have a clear idea.

The current surface treatment processes for steel and wood doors in the market are mainly divided into two categories:

1. Film pasting process: The surface of the steel plate is coated with PVC material (i.e. composite) that mimics wood grain. The production process involves the PVC material being heat sealed and pasted onto the steel plate. During use, due to changes in temperature, this type of product may experience delamination, delamination, leg color, and other phenomena. Moreover, after being scratched by sharp tools, delamination and rust are more severe.

2. Transfer printing and painting process: The steel plate is treated with phosphating solution for corrosion prevention → the bottom surface of the steel plate is sprayed with plastic → baked → the wood grain is heated and transferred onto the paint on the bottom surface of the steel plate → baked → the surface is treated with automotive painting process, and the performance is relatively stable.

Surface thickness of steel and wood doors

The thickness of steel plates best reflects the quality of steel and wooden doors. Due to the diversification of market prices, the thickness of steel plates also varies. To achieve a flat, smooth, and stable product surface, the thickness of steel plates should reach 0.5mm and above. Its anti-collision and impact resistance can only achieve good results.

However, some steel and wood door companies use low-quality products made of 0.3mm or thinner steel plates, resulting in poor surface smoothness and insufficient rigidity of the door body. Such products seriously disrupt the normal competitive order of the steel and wood door industry, damage consumer interests, and bring more quality complaints and after-sales problems to steel and wood door dealers. It is recommended that the market firmly resist such low-quality products.