What is ISO 2808:2019 Paints and varnishes — Determination of film thickness?
ISO 2808:2019 specifies a method for determining the thickness of coatings (paints, varnishes, and related products) on flat substrates. The standard is applicable to coatings that are dry or have been subjected to a heat or an air-drying treatment.
The method described in the standard involves the use of a non-destructive coating thickness gauge, which is calibrated using reference standards with known thicknesses. The gauge is then used to measure the thickness of the coating at several points on the substrate. And the results are averaged to give a representative value for the film thickness.
ISO 2808 provides guidance on the selection of appropriate measuring equipment and calibration procedures, as well as information on the interpretation of measurement results.
The standard is widely used in industries such as automotive, aerospace, and construction, where the quality and durability of coatings are critical to performance and safety.
Requirements of ISO 2808:2019
Equipment requirements: The non-destructive coating thickness gauge used for measuring the film thickness must meet the requirements specified in the standard. Including accuracy, resolution, and probe size. The gauge must also be calibrated using reference standards with known thicknesses.
Substrate requirements: The substrate must be flat and have a uniform surface finish. The substrate material must be compatible with the coating being measured, and any surface preparation must be carried out in accordance with the coating manufacturer’s instructions.
Measuring procedure: The measuring procedure must be carried out in accordance with the manufacturer’s instructions for the coating thickness gauge. Including probe placement, measurement frequency, and number of measurements per area.
Data analysis: The results of the coating thickness measurements must be analyzed and reported in accordance with the standard. Including the average film thickness, standard deviation, and number of measurements taken.
ISO 2808 also provides guidance on the interpretation of measurement results and the use of correction factors to account for the effects of substrate curvature, coating thickness, and other factors that may affect the accuracy of the measurement.
Therefore, The standard emphasizes the importance of proper calibration and maintenance of the measuring equipment to ensure accurate and reliable results.
Benefits of ISO 2808:2019
Improved quality control: By providing a standardized method for measuring the thickness of coatings, ISO 2808 helps ensure that coatings are applied consistently and to the correct thickness. Improving the quality and performance of the finished product.
Increased efficiency: Non-destructive coating thickness gauges allow for quick and easy measurement of film thickness. Reducing the time and labor required for testing and inspection.
Cost savings: Accurate measurement of coating thickness helps reduce waste and material costs. By ensuring that coatings are applied only as needed.
Compliance with regulations: This standard is widely recognized and accepted in industries that require coatings to meet specific performance and safety standards. Helping ensure compliance with regulatory requirements.
Improved customer satisfaction: Accurate measurement of coating thickness helps ensure that coatings meet customer requirements for appearance, durability, and performance. Also, improving customer satisfaction and loyalty.
Who needs ISO 2808:2019 Paints and varnishes — Determination of film thickness?
Automotive: Coatings are used in the production of automobiles to improve appearance, protect against corrosion, and enhance durability.
Aerospace: Coatings are used in the aerospace industry to protect aircraft from the harsh environment. Also, to meet safety and performance requirements.
Construction: Coatings are used in the construction industry for a variety of purposes. Including protection against weathering and corrosion, fire resistance, and decorative finishes.
Marine: Coatings are used in the marine industry to protect ships and other vessels from corrosion and damage caused by exposure to saltwater and other harsh environments.
Manufacturing: Coatings are used in a variety of manufacturing processes to improve appearance, protect against corrosion, and enhance durability.
Any industry that requires the use of coatings, such as paints and varnishes, may benefit from using ISO 2808:2019. To ensure that coatings are applied correctly and meet the required performance standards.
The standard is also useful for testing and inspection laboratories and regulatory agencies responsible for enforcing quality and safety standards in coatings.
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Read About: ISO/TR 2801:2007
