- The perfect preparation
As with spray gun painting, substrate preparation is also crucial for spray can painting. Surfaces to be painted must be clean, dry and free of grease. Ralf Ertle emphasizes: "Even though spray can painting produces less overspray: Everything that is not to be painted must be covered with tape and paper."
- Shaken, not stirred
To ensure the best possible application of the material from the can, the spray can must be shaken before use. Ertle elaborates, "After the substrate has been prepared in the usual manner, the spray can must be shaken thoroughly for about two minutes after the mixing ball has been struck." This ensures that the product in the can is optimally mixed and that the paint application appears even.
- Test spray
In contrast to the spray gun, where the optimum distance to the object is defined when painting, trial spraying on a practice area is worthwhile when spray can painting: "This allows the painter to see how the spray jet comes out of the can and applies to the surface and, above all, what distance he has to keep from his object," explains Ertle.
- Thin layers in a cross coat
When painting, the spray can should always be held vertically. The spray pass starts outside the object. "It's best to spray several thin coats in a crisscross pattern, first vertically, then horizontally. Wait two to three minutes in between," the expert recommends. The ideal working temperature is between 20 and 25 degrees Celsius.
- 2K coatings from the spray can
How do 2K coatings from the spray can work? In the SprayMax products from Kwasny, hardener is located in a separate cartridge inside the can. By firmly pressing a special attachment onto the bottom of the can, the inner sleeve is pushed through. "This allows the hardener and active ingredient in the can to come into contact," Ertle points out.