CATEGORIES

    Coating Porosity Tester

    Overview Knowledge Standards Terms
    The coating porosity tester measures the number of pores on the coating surface through the electrolyte penetration method and calculates the porosity using changes in current. It is used to evaluate the sealing performance of coatings such as metal anti-corrosion layers and electroplated layers, and to inspect coating quality in fields such as automotive components and ship protection.
    Selection
    When selecting, consider that the measurement range should cover the sample's porosity range and be compatible with different coating thicknesses. Check whether the instrument's accuracy matches industry standards, and ensure the operation interface is user-friendly. Verify electrolyte compatibility and data output formats. Choose an appropriate fixture based on the sample size.
    type
    Coated Film thickness
    Voltage range

    Terms

    Coating Porosity Tester
    Coating Porosity Tester

    Standards

    Incoming GB/T 46747-2025
    Rapid Determination of Heavy Metal Elements in Furniture Coatings by X-ray Fluorescence Spectrometry
    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
    Active GB/T 22638.10-2016
    Test methods for aluminium and aluminium alloy foils—Part 10：Determination of mass per unit area (surface density) of coatings

    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.