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ORANGE PEEL

ORANGE PEEL

Author: Anonym/Monday, January 1, 1900/Categories: Difetti di verniciatura

ORANGE PEEL

Description

The painted surface presents poor flow and resembles orange peel.

Cause

Poor flow due to:
- Poor spray gun technique (gun held too far from the surface, causing the paint to dry).
- Unsuitable spray gun adjustment (air cap, air pressure, etc).
- Too high spray viscosity.
- Use of too fast or unsuitable thinners.
- Too short flash off between coats.
- Too high surface temperature and/or spray booth temperature.
- Application of too thick or too thin coats.

Solution

After the paint is thoroughly hardened:
- Rub out orange peel with very fine abrasive paper and polish.
- In severe case flat thoroughly and re-spray.

Prevention

- Always follow the data-sheet prescriptions and observe the suggested spray gun techniques.
- Use the suggested thinners depending on the room conditions, check the spray viscosity and the air pressure.
- Apply uniform coats and respect the flash off time between the coats.
- Check the room conditions: temperature and ventilation.

 
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