How to adjust a spray gun: hot topics and practical tips on the Internet
Recently, the use and debugging of spray paint guns has become a hot topic among DIY enthusiasts and professional workers. Whether it is car repair, furniture renovation or industrial spraying, the debugging skills of the spray gun directly affect the spraying effect. This article will combine the popular discussions on the Internet in the past 10 days to provide you with a detailed analysis of the debugging method of the spray gun and provide structured data for reference.
1. Core parameters for spray gun debugging

The debugging of the spray gun mainly involves parameters such as air pressure, spray width, and paint flow rate. Here are the key debugging points summarized in recent popular discussions:
| parameters | Recommended value | Adjustment method |
|---|---|---|
| air pressure | 2-3 bar | Controlled by air pressure regulating valve, fine-tuned according to paint viscosity |
| Spray width | 10-15 cm | Rotate the spray width adjustment knob to test the spraying effect |
| paint flow | Moderate | Adjust the paint flow knob to avoid being too thick or too thin |
| Spray gun distance | 15-20 cm | Keep the distance between the spray gun and the workpiece consistent |
2. Recent hot issues and solutions
According to the discussion data across the Internet, the following are the 5 most common problems and their solutions in spray gun debugging:
| question | Reason | solution |
|---|---|---|
| Uneven spraying | Unstable air pressure or improper spray fan setting | Check the air pressure source and readjust the spray width |
| paint splatter | Paint viscosity is too low or air pressure is too high | Increase paint viscosity or reduce air pressure |
| spray lines | Nozzle clogged or damaged | Clean or replace nozzles |
| Paint too thick | Paint flow is too large or moving speed is too slow | Reduce flow or move faster |
| Poor spray atomization | Insufficient air pressure or too thick paint | Increase air pressure or thin paint |
3. Detailed explanation of spray gun debugging steps
1.Preparation: Make sure the spray gun and paint are in a suitable temperature environment (15-25℃), and wear protective equipment.
2.Air pressure debugging: After connecting the air source, first set a lower air pressure (1.5 bar), gradually increase it to 2-3 bar, and observe the spraying effect.
3.Spray width debugging: Test on a scrap board, turn the spray width adjustment knob until a uniform oval spray pattern is obtained.
4.Paint flow debugging: Set to medium flow rate at the beginning, and fine-tune it according to the actual spraying effect. If it is too large, it will cause sagging; if it is too small, the coverage will be insufficient.
5.Comprehensive testing: Before formal spraying, be sure to conduct multiple debuggings on the test board to ensure that all parameters are coordinated.
4. Key points for debugging different coatings
According to recent hot discussions, different coatings have special requirements for spray gun debugging:
| Paint type | Viscosity requirements | Air pressure recommendations |
|---|---|---|
| Water-based paint | lower | 2-2.5 bar |
| Oil-based paint | medium | 2.5-3 bar |
| metallic paint | higher | 3-3.5 bar |
| Varnish | low | 2-2.3 bar |
5. Maintenance points
1.Clean after each use: Immediately clean the spray gun with corresponding solvent to prevent the paint from drying out and clogging.
2.Check seals regularly: O-rings and gaskets should be inspected once a month and replaced if found to be aging.
3.Nozzle maintenance: Use special cleaning tools to avoid metal contact damage to the nozzle.
4.Storage precautions: Disassemble the main components and store in a dry and dust-free environment.
Through the above debugging and maintenance methods, you can ensure that the spray gun is always in optimal working condition. Recent discussion data shows that 90% of spraying problems stem from improper debugging or lack of maintenance. Master these tips and you'll be on your way to achieving professional-grade spray results.
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