Properly Cleaning Spray Paint Gun Leave the Cap on the Paint Gun When You Clean ItThis will make it impossible to clean out the paint inside the cap and on the fluid tip – – this stuff builds-up over time ruining your SPRAY PATTERN! Do This Instead: Remove the cap and clean out the paint inside … Continue reading 5 Ways to Ruin a Waterborne Paint Gun and Mess Up a Paint Job And How to Avoid the Problem