Liquid spray painting
Liquid paint can be applied in many different ways determined by: the product, the volume, the quality requirements and other factors.
Application method: handheld spray guns, high volume low pressure (HVLP) guns, automatic guns, automatic rotary bells or disk.
Painting components with corners & crevices
- Spray equipment: non-electrostatic or electrostatic.
- Typical paint is used for such wet on wet process is epoxy or polyurethane. Paint is normally baked.
Painting large components
- Spray cannot reach each & every area.
- In addition, if the component needs high corrosion resistance, then electrophoretic technology will be more appropriate for depositing the primer paint and is followed by spray with top coat of paint.
- Typical components requiring this technology are auto components.
- These are shot blasted, can be given a zinc phosphate layer followed by primer coat of paint which is either applied through manual spray or electrostatic spray.
- This is followed by spray top coat (normally polyurethane / acrylic) and is forced to dry at 70-80°C temperature.
- Also for plastic parts, spray painting is used.