How many times and how often should gundam model be sprayed with varnish? I sprayed it before, and it turned white. What is the reason and what should be paid attention to?

Many people say that I spray less, but I spray more every time, and the effect is very good. Are you sure I'm spraying varnish? The first time you spray matte, it turns white, but the first time you spray varnish, it doesn't turn white. Don't spray when the weather is wet.