Ah, the perplexing issue of blistering spray paint. Let's shed some light on this conundrum and address it directly. The phenomenon of spray paint blistering can be attributed to a few key factors. Firstly, inadequate surface preparation could be the culprit. If the surface is not properly cleaned, sanded, or primed before applying the spray paint, it can lead to poor adhesion and eventual blistering. Secondly, adverse environmental conditions, such as high humidity or extreme temperatures, can wreak havoc on your spray paint job. These conditions interfere with the drying process, causing the paint to bubble and blister. Thirdly, incompatible paint layers can clash, resulting in blisters. If you're applying a new coat of paint over an existing one that is not fully cured or using incompatible paint types, blistering can occur. Lastly, spraying paint too thickly or too close to the surface can create a buildup that traps solvents and air, leading to blister formation. So, to tackle spray paint blistering, ensure thorough surface preparation, choose suitable environmental conditions for spraying, use compatible paint products, and maintain an appropriate spraying technique. By addressing these factors head-on, you can bid farewell to blister and achieve a smooth, flawless spray paint finish.