I’m having major problems whenever I go to spray BMW Black Sapphire Metallic basecoat. I’ve tried numberous different things to combat the issue but I never resolve it and it never cuts out properly without rubbing through to my basecoat. There is another video pending upload that I will post later Here are the basic facts and figures Panel sprayed with cellulose filler primer over Upol barcoat or isolater as it’s also know. Paint wet sanded. Forgot to guide coat so some areas are rough but that can be easily sorted out. Sanding scum washed off with water. Tetrosyl pre wipe degreaser used to clean panel. This product visibly flashes off as soon as you’ve applied it. 1 part Closterman Coatings Merlin BMW black Sapphire Metallic 1 part Pro Spray A116/A-116-1 medium basecoat thinners. I have also tried 120% thinners I think 120% is too much because I got blooming, which I’ve only ever had once before from spraying in damp conditions. Clarke AP16GF HVLP spray gun 1.4mm tip Running between 35-45psi input pressure read on gun pressure gauge. Fluid turns anywhere between 2-6 turns out Fan between 1/4 to 1 1/2 turns out. Another gun I have used is No make, budget conventional gravity fed with 1.5mm tip. Air pressure up to 50 psi Paint is not filling onto the panel nicely It is coming out in blobs Not as severe as if air pressure loss but noticeable. Paint is in speckled haze type pattern Never smooth Like results you get from spray can Paint will pile on smoothly but only if you move gun very slowly or pause Looks fantastic but then you see the runs. The primer I sprayed went on the panel lovely and smooth through a 2.2mm tip. It would never spray through a 1.5. It just spluttered all the time. I’m tempted to try my base through my primer gun because I don’t know what else to do. Same rubbish all the time. At my whits end. PS. Is it possible to upload photos from iPhone without url? If not; how do I? I have some nice clear photos. Shows what’s going on. Any help appreciated. This projects been going on for years and I just wish I had someone watching what I do and telling me what is going wrong when I spray basecoat. Thanks.