Spraying multiple shades in one day requires more discipline than simply rinsing the cup between colors. Cross-contamination can come from the cup, fluid channel, needle packing, air cap, mixing bench, tack cloth, masking paper, hose area, or even overspray floating inside the booth. One small trace of red, black, blue, or metallic can ruin a white, silver, or light beige job.
Start with job sequencing. Spray lighter and cleaner colors first whenever production planning allows. Whites, silvers, pearls, and light metallics should be completed before deep reds, blacks, blues, and high-strength colors. Heavy metallics and pearls should not be sprayed immediately before solid light colors unless the gun is fully cleaned and verified. This reduces the risk of hidden pigment or flake contamination.
Use dedicated mixing and spraying accessories. Disposable cup liners are helpful, but they do not replace gun cleaning. Keep separate strainers, stir sticks, measuring cups, and tack cloths for different color families when possible. Do not place a clean cup on a dirty mixing bench. Wipe the gun exterior before moving from one job to another, especially around the lid, trigger, nozzle area, and fluid inlet.
The LVLP Spray Gun Premium Crafted, Matte Finished should be flushed after each color change with the correct solvent or waterborne cleaner, depending on the coating system. Empty remaining material, rinse the cup, add cleaner, shake gently, and spray into a cleaning station. Repeat until the discharge is fully clear. Then remove the air cap and inspect the nozzle face. Pigment often hides around the nozzle thread and cap horns.
For metallic and pearl colors, cleaning must be more thorough. Metallic flakes can lodge inside the fluid channel and appear later as random specks in another color. When using an air spray gun for silver or pearl basecoat, perform a spray-out after cleaning before moving to the next color. Spray cleaner onto white masking paper and check for tinted droplets or metallic particles.
Control the booth environment as well. Replace dirty masking paper, remove overspray dust, and avoid blowing contaminated dust from one vehicle area to another. Keep air hoses off the floor as much as possible. A hose dragged through overspray dust can contaminate gloves and panels. Change gloves between colors, especially before handling light basecoat or clear coat.
The LVLP Spray Gun Premium Crafted, Matte Finished works best in a clean, repeatable workflow. At the end of each color, document the cleaning step, inspect the pattern, and confirm spray-out cleanliness. Cross-contamination prevention is not only about the spray gun; it is about the entire process from mixing bench to booth exit.
A professional painter should treat every color change as a controlled reset. Clean the tool, clean the workspace, verify the spray-out, then begin the next shade.
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
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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
