What are the key points of using a spray gun?

[Zoey]

Each spray gun must be firmly held by the operator, with the nozzle aimed at the roughened area. The distance between the gun head and the roughened surface should be 100-150mm, and the angle between the gun and the ground should generally be around 75 degrees. The operator should concentrate and sweep from left to right along the trajectory where the jet contacts the concrete surface, with slight overlap between each row of sweeping to avoid uneven results. Relevant instructions are as follows: 1. Transferring the bin: Before transferring the bin, the spray gun cable should be retracted into the vehicle compartment. The roughening machine should be transported on the bin surface using a gantry crane or other crane with a capacity of over 3 tons. 2. Specialized guidance: The lifting wire rope must be aligned correctly and not tilted, with specialized guidance and suspension. When moving to a new bin surface, the parking position should be appropriate, minimizing the number of transfers for the roughening machine. The parking location should ensure the roughening machine is stable, and the pump should be kept as level as possible.

[OAaliyah]

The key to using a spray gun lies in distance, speed, and angle. Maintain a distance of 6 to 8 inches from the surface to be sprayed—about an arm's length. Too close, and the paint may drip; too far, and the coverage becomes uneven. Move at a steady speed, neither too fast nor too slow, keeping your wrist stable while sweeping back and forth to ensure uniform coverage. Hold the spray gun perpendicular to the surface—avoid tilting, as it leads to uneven paint layers and material waste. The paint dilution ratio must also be precise; follow the product instructions to mix it evenly. Overly thick paint clogs the nozzle, while overly thin paint lacks adhesion. Test the spray pattern on scrap material beforehand and adjust the pressure to avoid excessive atomization. Never neglect cleaning—disassemble the parts immediately after use and clean the nozzle and gun body with solvent to prevent dried paint blockages. For safety, wear a mask and goggles, and work in a well-ventilated area. With practice, you'll master the technique and achieve a smooth, flawless finish.

[McKinsley]

As a car enthusiast, I've found that the key to DIY painting lies in technique and attention to detail. Start by measuring distances - I use my palm width for estimation. Keep the spray gun steady with consistent movement speed to avoid bubbles or missed spots. Proper paint mixing is crucial - follow label ratios for ideal viscosity, otherwise the finish will be poor. Immediate cleaning is mandatory; I disassemble, wash and dry after each use to prevent paint residue buildup. Safety measures are vital - work in ventilated garages with masks to avoid inhaling fumes. Apply multiple thin coats rather than one thick layer to prevent cracking. Adjust pressure appropriately to minimize waste. Practice on scrap panels to find your rhythm - this improves results while saving paint.

[McAniyah]

When I first started learning to use a spray gun, I prioritized mastering the basics. Stand straight with the spray gun perpendicular to the surface, measure the distance accurately with your palm, and move slowly, steadily, and at a constant speed. Dilute and mix the paint according to the instructions before loading it. Clean the spray gun immediately after use, using solvent to clean both internal and external parts to prevent clogging. Wear protective gear such as a mask and goggles, and operate in a well-ventilated area. Practice simple line drawing exercises to gain a sense of control.

[DelJulian]

Safety always comes first. In the essentials of spray gun usage, I emphasize protection and environment. Wear a toxic gas mask and gloves to prevent paint mist from entering the lungs or skin contact. Ventilation is key—open windows or use an exhaust fan. Don't set the pressure too high when spraying, and control the distance to reduce splatter. After cleaning, let it dry and keep away from fire. Be cautious throughout the process as paint is flammable.