company news about Putty Spraying Process

Commonly used scraping putty, the general process is as follows:

check the coverage of polyester putty - mixed polyester putty - apply polyester putty - dry polyester putty - polish polyester putty - remove sandpaper scratches - apply two Primer process

Treatment of metal surface before putty scraping:

After removing the damaged or aging old coating film, and repairing the edge junction with the old coating film, the surface of the putty that needs to be smeared must be thoroughly removed with compressed air. For exposed metal surfaces, degreasing treatment should be carried out with gasoline and solvents.

In rainy days and high humidity seasons, moisture is often attached to the metal surface. Infrared lamps and hot air heaters should be used to increase the temperature of the metal surface and remove moisture. The same method can be used in the cold season, which can improve the adhesion of the putty, and can avoid quality accidents such as layering and cracking after the topcoat is painted, and the drying speed of the putty layer is also increased.

Choice of putty:
The choice of putty is that it requires good adhesion to metal and old coatings; second, it requires heat resistance, which can withstand more than 30 minutes at 120 degrees without the occurrence of layering, cracking, bubbles, etc .; third The construction performance of putty, it can be polished in about 30 minutes after the putty is scraped, and the putty's scraping and polishing performance is good.