CATEGORIES

    Coating Porosity Detection Meter

    Overview Knowledge Standards Terms
    The coating porosity tester measures the number of micropores on the coating surface using the electrolyte penetration method. Electrolyte is applied to the coating surface, and after electrification, the current passing through the pores is recorded. The magnitude of the current is proportional to the number of pores. It is used to evaluate the sealing performance of metal anti-corrosion coatings and electroplated layers, as well as to monitor coating quality in the automotive manufacturing and shipbuilding industries.
    Selection
    Focus on measurement accuracy and the detection range of pore diameter, ensuring compatibility with the coating thickness to be tested. Consider whether the instrument supports different electrolyte formulations and verify the validity of the calibration certificate. The operation interface should be user-friendly, and the data export function must meet recording requirements. Select appropriate fixtures based on the sample size and confirm that the power supply is suitable for the on-site environment.
    type
    Coated Film thickness
    Voltage range

    Terms

    Coating Porosity Tester
    Pinhole Leak Detector
    DC Pinhole Detector
    Wet Sponge DC Leak Detector
    Paint pinhole detector
    Wet sponge leak detector
    Coating Porosity Tester
    Coating Pinhole Leak Detector
    Paint Leakage Detector
    Coating Holiday Detector

    Standards

    Incoming GB/T 46747-2025
    Rapid Determination of Heavy Metal Elements in Furniture Coatings by X-ray Fluorescence Spectrometry
    Incoming GB/T 21650.1-2026
    Determination of pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption—Part 1: Mercury porosimetry
    Active GB/T 45593-2025
    Fine ceramics—Determination of the abrasion resistance of coatings by micro-scale abrasion test
    Active GB/T 6843-1986
    Method for determining the coating melting point of photographic materials
    Active GB/T 13448-2019
    Test methods for prepainted steel sheet and strip
    Active GB/T 40359-2021
    Timekeeping instruments—Photoluminescent deposits—Test methods and requirements
    Active GB/T 42261-2022
    Metallic and other inorganic coatings—Test method of cyclic heating for thermal-barrier coatings under temperature gradient
    Active GB/T 44335-2024
    Fine ceramics—Methods of test for coatings—Determination of internal stress in ceramic coatings by application of the Stoney formula
    Active GB/T 7790-2008
    Paints and varnishes - Determination of resistance to cathodic disbonding of coatings exposed to sea water
    Active GB/T 41954-2022
    Paints and varnishes—On-site test methods on quality assessment for interior wall coatings
    Active GB/T 30794-2014
    Determination of polyvinylidene fluoride (PVDF) content of hot-melt fluorocarbon resin coatings (dry film)—Dropping of the melting temperature
    Active GB/T 30789.3-2014
    Paints and varnishes—Evaluation of degradation of coatings—Designation of quantity and size of defects ,and of intensity of uniform changes in appearance—Part 3: Assessment of degree of rusting
    Active GB/T 9266-2009
    Determination of scrub resistance of film of architectural paints and coatings
    Active GB/T 23987-2009
    Paints and varnishes - Exposure of coatings to artificial weathering - Exposure to fluorescent UV lamps and water
    Active GB/T 30707-2014
    Testing method on adhesion of fine ceramic coatings―Scratching

    Articles

    Porosity Control in the Preparation of Porous Coatings During the Blade Coating Process
    Doctor blade coating is a wet coating technique widely used for preparing functional coatings, which involves uniformly applying a slurry containing solid particles (such as ceramics, polymers, or metal oxides) onto a substrate, followed by drying and heat treatment to form the coating.