Environment

Dust pollution

Particles of dust or other impurities that have settled on the wet paint and become trapped in it while drying. Visible as small raised dots on the surface of the coating, each particle forms a distinctive button with a shadow around it.

Cause

Vehicle preparation

Inadequate cleaning of the car before painting - dust and dust from hard-to-reach places
Sanding residues remaining on the substrate
Fibers from the edges of paper or masking tape
No use of a cloth to remove dust immediately before application

Cabin and equipment

Contaminated base coat
Clogged ceiling or exhaust filters in the spray booth
Cabin pressure too low - dust rises instead of being discharged
Inadequate ceiling filters or old, failing air ducts
Contaminated floor, air ducts and cabin walls
Inadequate maintenance of the compressed air system

During application

Work clothes made of fibers that fray - release dust during work
Excessive movement around the car while painting - disrupts air flow and raises dust
Electrostatic charges attract dust - especially with aluminum and plastics
Unnecessary sudden movements in the spray booth

Prevention

Preparation

Wash the vehicle before starting the repair process
Thoroughly clean the area around the repair - holes, wheel arches, hard-to-reach places
When dry grinding, always use extraction devices and clean thoroughly after sanding
When wet sanding, do not allow the residue to dry - clean it immediately
Use good quality masking paper and tape with the smooth side on top

App

Use an antistatic cloth to remove dust immediately before application
Use paint strainers to filter the paint before pouring into the gun
Work clothes should be clean, free of fibers - preferably nylon or antistatic
Avoid unnecessary movements and walking in the cabin while painting
Use antistatic cleaner and grounding to remove static electricity
Keep the air hose to the gun away from the floor while painting
After painting, hang up the cable - do not drop it on the floor

Cabin maintenance

Regularly check and replace filters in the spray booth
Regularly clean the cabin - floor, walls, air ducts
Regularly check the compressed air system
Maintain proper cabin pressure
Use appropriate filters: ceiling and exhaust filters

Repair

Fresh paint - Small dust particles can be removed with a needle or small pin while the paint is still wet
Dried varnish with minor contamination - sanding with fine paper and polishing
Large particles or deep-seated dirt - sand the substrate and repaint from the top layer