Small automotive parts do not require the same spray footprint used on a door or hood. Mirrors, trim pieces, brackets, fuel doors and small repair areas can generate unnecessary overspray when the fan is too wide or inlet pressure is set higher than required. The objective is to reduce wasted material while maintaining complete atomization and a stable wet film.
Connect the gun through a regulator capable of maintaining adequate flow. Pull the trigger fully and set pressure within the manufacturer's recommended operating range. A regulator reading taken with the trigger released is not the value the gun experiences during spraying. Start from the recommended setting and reduce pressure only in small increments while checking atomization.
For a narrow part, reduce fan width instead of allowing most of the pattern to miss the workpiece. After changing the fan control, make a test spray because some gun designs require fluid and pressure adjustments to maintain balanced distribution. Do not close the fan until it becomes a concentrated wet jet.
A corrosion resistant LVLP spray gun is useful for daily automotive shop work, but overspray control depends mainly on setup and technique. A conventional air spray gun may use different airflow and pressure characteristics, so never copy regulator numbers between unrelated gun models.
Reducing pressure too far creates coarse droplets, poor edge breakup and uneven texture. Excessive pressure increases particle velocity, bounce-back and airborne material. On a test card, inspect the center and both ends of the pattern. The goal is a fine, even distribution without heavy tails or dry fuzzy edges.
Maintain the gun distance specified by the manufacturer and coating system. Moving too far away encourages dry spray and overspray; moving excessively close can overload the surface. Start gun movement before pulling the trigger over the part and release material before stopping movement. This is particularly important on short components where hesitation can create runs immediately.
When the fan is narrowed, excessive fluid delivery can produce a heavy center. Make small fluid-control adjustments and verify the result on a test panel. Do not use the fluid control merely to compensate for incorrect viscosity or a mismatched nozzle.
Mount small components on stable stands so all required edges can be reached without repeatedly spraying past the part. Plan the sequence: difficult edges first, main face second, then inspect coverage under booth lighting. Avoid repeatedly coating an edge that already has adequate film build.
Record the successful setup for recurring components, including coating, fluid tip, dynamic pressure, fan setting, gun distance and number of passes. Repeatable small-part refinishing comes from balancing airflow, fan width and material delivery rather than simply turning pressure down as far as possible.
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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
