Coatings and corrosion
ISO 2808: Paints and varnishes, determination of film thickness
The method standard behind coating thickness measurements.
01Purpose
ISO 2808 describes methods for measuring the thickness of coatings applied to a substrate, including wet film, dry film and uncured powder.
02Scope
Methods include mechanical, gravimetric, optical, magnetic, eddy current and ultrasonic techniques, with guidance on suitability.
03Main requirements
- Selection of method by substrate and coating
- Gauge adjustment and verification
- Measurement procedure
- Reporting
04Typical applications and industries
Paint and powder coating inspection. Acceptance rules for structures often come from ISO 19840.
05Audit and inspection considerations
- Is the gauge verified on a representative substrate?
- Are sampling rules applied?
06Common nonconformities
- Gauge not verified
- Readings on edges or welds treated as general readings
07How QUALITAS TR can support
Use our DFT calculator and see coating measurement.