Thin resin coating amount on steel sheet

Example of measurement target: Measuring the amount of thin resin coating on a steel plate

• Measurement target: 0-1g/m2 (DRY), 5-20g/m2 (WET)
• Benefits of measurement: Steel plates used in automobiles are thinly coated with resin according to the process to make subsequent welding and processing easier. By measuring the amount of this coating, Cost reduction, quality improvement You can do things like:
• Key point: When measuring wet coating immediately after coating, absorption wavelength of the coating amount meter used will differ depending on whether the coating is water-soluble or solvent-based. A single multi-component meter can measure both water-soluble and solvent-based coatings. After coating and drying, the coating thickness is thin at less than 1 μm, so a long wavelength (infrared) is used to improve measurement sensitivity, and measurements are taken with an ultra-thin thickness meter that employs a P-polarized light method that is compatible with the phenomenon of optical interference. In the case of double-sided coating, two units are used, one for the front and one for the back, for measurement.