I have just bought the product, so I can only say something about the processing. I rely on the manufacturer's references for the long-term properties.\r\nI applied Zinga with a spray gun. I used a standard HVLP spray gun with a 1.3 nozzle. It worked, but it wasn't ideal. A 2.5 nozzle is recommended. You should definitely read the technical data sheet and the manufacturer's processing instructions before you start work. Then you shouldn't have any problems. I can confirm the information on surface performance based on 1 kg. When adding thinner, I have found that less is more and I used the minimum amount. This enabled me to achieve an even application without anything running. You also achieve the specified drying times. In my case, you could touch the parts after about 15 - 20 minutes without leaving any marks. Runs were easily removed by dabbing with a lint-free cloth and then painting over them.