Only after spraying and curing can it become the final product. , And quickly corroded the substrate. If the heating temperature is low and the time is too long, the powder coating will melt, level and wet the coated object. We can see that the traffic barriers used outdoors will show signs of rust at the arc coers of the intersection soon after being put into use. In short, if you want to heat up quickly and reach the curing temperature in a short time, you can get the China bonding powder coating Manufacturers ideal coating effect and long-term protection function.

Due to the rapid curing, the inteal stress of the film layer will be more, but because the coating film is thier, the physical properties have little influence. The leveling process has been completed before gelatinization, and this kind of board has good leveling and less orange peel.

If the curing temperature or time If it is not enough, the curing will be incomplete, the due performance will not be exerted, its physical properties will be greatly reduced, the chemical resistance will not be good, and the decoration, corrosion resistance, and weather resistance will not reach the expected results.

Some people think that the heating temperature is lower, the reaction speed is reduced, and the leveling can be better. Each powder coating has its own curing characteristic curve, which can be fully cured within a certain temperature and time range. That is to say, the use of powder coatings is as important as the production of powder coatings. As the reaction proceeds, the viscosity continues to rise, and the leveling effect will not be good.ufeffThe powder coating itself is only a semi-finished product.

At the same time, the coating can wet the surface well, improve its adhesion, and has better durability. The curing effect has occurred before, and the physical properties are not ideal. In fact, it is just the opposite, because after powder spraying, its melting and solidification are carried out almost at the same time. Direct relationship

امتیاز بدهید :