Low-gloss and semi-gloss industrial coatings require careful spray adjustment because their final appearance depends heavily on film thickness, atomization quality, drying condition, and spray distance. Unlike high-gloss coatings, which often highlight depth and reflection, low-gloss and semi-gloss finishes must appear smooth, even, and controlled. If the spray settings are not correct, the surface may show patchiness, uneven sheen, orange peel, or dry spray marks.
The first step is to check coating viscosity. Low-gloss and semi-gloss materials often contain matting agents, which can settle at the bottom of the container. Before spraying, the coating should be fully mixed according to the technical data sheet. If the material is too thick, atomization may become rough. If it is over-thinned, the coating may flow too much and create uneven gloss. Always follow the recommended mixing ratio and test the spray pattern before full production.
Air pressure should be adjusted gradually. Too much pressure can over-atomize the coating, causing dry spray and a dusty surface. Too little pressure may create large droplets, poor coverage, and orange peel. For controlled industrial finishing, many operators prefer low-volume, low-pressure spraying because it helps reduce overspray and improves transfer efficiency. A stable tool such as LVLP Spray Gun Metal-forged, Non-deforming can help maintain consistent spray performance, especially when working on metal parts, machinery panels, cabinets, or equipment surfaces.
Next, adjust the fluid control. Low-gloss coatings usually need a balanced wet film, not too heavy and not too dry. If the fluid output is too high, the surface may become glossier than expected because the film is too thick. If the output is too low, the surface may look rough or uneven. For semi-gloss coatings, consistency is especially important because sheen differences are easier to notice under side lighting.
Fan pattern adjustment is also important. A wide fan is useful for large flat panels, while a narrower fan may be better for edges, frames, and smaller components. Keep the spray pattern even from top to bottom. If the fan is heavier in the center or weak at the edges, clean the nozzle and air cap before adjusting further.
Spray distance should usually remain consistent. Moving too close can create heavy wet areas and higher gloss. Moving too far away can cause dry particles to land on the surface, reducing smoothness. Maintain a steady speed and overlap each pass by about 50 percent. This helps prevent striping and uneven sheen.
Environmental conditions should not be ignored. Temperature, humidity, airflow, and drying time can all affect gloss level. Strong booth airflow may dry the coating too quickly, while slow drying can allow excessive flow and gloss variation.
Before spraying production parts, make a test panel and compare the finish after drying. Adjust pressure, fluid output, and distance until the desired appearance is achieved. With a reliable setup like LVLP Spray Gun Metal-forged, Non-deforming, operators can achieve cleaner atomization, better control, and more repeatable low-gloss or semi-gloss industrial coating results.
Wenzhou Sico Spraying Tech.Co.,Ltd
Add: Daqiao Industrial Area,Beibaixiang Town,Yueqing,Wenzhou,Zhejiang
Zip code:325603
Tel:+86-577-67307836
Email:sales@sicotools.com
Mobile/Wechat：+86-13777716892
...
These SK-300 spray guns are fantastic! Love the no oring design, less leakage and easy maintenance. The atomization is perfect for automotive painting. Highly recommend!
Spiro Pittas,AustraliaPRD-817 gives me precise control over color, gloss, and gradients-art-level finish without top-tier pricing”
Olie-PaintzPRD-817 gives me precise control over color, gloss, and gradients-art-level finish without top-tier pricing”
Olie-PaintzPRD-817 gives me precise control over color, gloss, and gradients-art-level finish without top-tier pricing”
Olie-PaintzPRD-817 gives me precise control over color, gloss, and gradients-art-level finish without top-tier pricing”
Olie-Paintz
