Paint, Coating Film, and Coating Testing Instruments
QCJ Coating Film Impact Tester
The paint film impact tester is used to evaluate the ability of topcoats, clear coats, or related products to resist delamination or cracking from the substrate when subjected to impacts from different spheres under standardized test conditions. This assessment reflects both the mechanical strength of the coating and its adhesion to the substrate.
QCT Thick Paint Putty Consistency Tester
It is designed in accordance with the national standard GB 1749‑79 and is used to determine the consistency of thick paints or putties, offering simplicity, intuitiveness, and accuracy.
QDK Automatic Dynamic Crack-Resistance Tester
Due to factors such as uneven moisture–drying cycles, thermal expansion and contraction, structural settlement, and deficiencies in design and construction, nearly all buildings exhibit surface hairline cracks, surface through‑going cracks, and structural cracks to varying degrees.
QFD Electric Coating Adhesion Tester
The circular‑trajectory method is used to determine the adhesion performance of paint films, assessing the ability of various coatings to adhere to the substrate surface.
QFH Cross‑Hatch Adhesion Tester, Cross‑Hatch Cutter, and Film‑Cutting Kit – Product Description The adhesion tester, also known as the cross‑hatch cutter, is designed and manufactured in accordance with ISO 2409:1992. It complies with GB/T 9286‑98 and BS 3900 E6/ASTM D3359 standards and is primarily used for determining the adhesion of organic coatings using the cross‑hatch method. This instrument is suitable not only for laboratory use but also for on‑site applications under a variety of conditions.
QFM Coating Abrasibility Tester
This instrument is primarily used to determine the grindability of interior putties applied to interior walls, ceilings, and other indoor surfaces.
It is primarily used to determine the solvent resistance of coatings on aluminum‑plastic composite panels and can also be applied to assess the solvent resistance of coatings on other similar substrates. This instrument features a well‑designed structure, reliable performance, simple operation, and automatic counting.
QFS Coating Washability Tester
The paint washability tester is an instrument used to evaluate the washability of coatings. It can also be employed to assess the washability of any surface that has undergone thin-film coating or composite treatment.
QFZ Coating Adhesion Tester (Manual)
The circular‑trajectory method is used to determine the adhesion performance of paint films, assessing the ability of various coating films to adhere to the surface of the substrate.
QGS Paint Film Drying Time Tester
This product is used to determine the drying time of paint films and putty films.
QGY Coating Film Stackability Tester
This instrument is suitable for measuring the resistance to damage of single-layer coatings, such as lacquers and varnishes, or related products, as well as composite coating systems, after they have been fully dried within the specified drying time, when two coated surfaces, or one coated surface in contact with another type of surface, are subjected to compressive conditions.
QGZ-24 Automatic Paint Film Drying Time Tester
Determining the Drying Time of Paint Films and Putty Films To gain a comprehensive understanding of the drying and curing processes of coatings, an instrument capable of automatically measuring the entire drying period is required. This enables test personnel to obtain accurate and efficient scientific data. The design principle involves using a single-chip microcomputer to control a high-precision stepper motor, which drives a rocker arm equipped with a spherical contact point. Under a specified load and at a constant speed, a stylus performs uniform circular motion on the surface of the coating being tested. By recording the stylus’s trajectory on the coating surface and overlaying it onto a drying-time graph, the complete film-forming process can be evaluated.
QGZ-A2 Intelligent Linear Drying Time Recorder
The intelligent linear drying-time recorder enables comprehensive analysis of samples with diverse drying‑time characteristics.
QGZ-A Linear Paint Film Drying Time Tester
It measures the drying time of paint films and putty films. For various coatings—such as colored paints and clear varnishes—applied to surfaces, it can automatically and continuously display the state of each stage in the drying process along a straight-line trajectory, enabling intuitive analysis of the time required for each stage.
This instrument is used for sampling and testing of paints, varnishes, and related products to determine the film hardness of such coatings.
QHQ-A Portable Pencil Hardness Tester
The test method for determining the hardness of a paint film by means of the pencil hardness scale, which involves scratching through the paint film, is characterized as follows: Hardness is expressed in terms of the pencil hardness grade at which the paint film is scratched through under specified test conditions.
QHQA Electric Pencil Hardness Tester
Specifically designed for hardness testing of coatings on various finished products, such as mobile phone casings, MP4 player housings, laptop enclosures, and other appliance and digital‑product casings. The machine features electric (semi‑automatic) control and employs a stepper motor to drive the transmission, enabling precise forward and backward motion with low noise and high stability. The test stroke is adjustable to meet specific requirements.
QHQ Desktop Pencil Hardness Tester
The test method for determining the hardness of a paint film by means of the pencil hardness scale, which involves scratching through the paint film, is characterized as follows: Hardness is expressed in terms of the pencil hardness grade at which the paint film is scratched through under specified test conditions.
This instrument is suitable for indentation testing of single‑layer or multi‑layer coatings, whether pigmented or clear. It is designed solely to measure the resistance of a coating surface to plastic deformation. When the instrument applies a specified load under prescribed conditions, an indentation is produced; the indentation length serves as the basis for expressing the results of the indentation resistance test. As the desired performance of the coating—namely, its resistance to indentation—improves, the measured indentation resistance value increases.
QHZ Coating Film Scratch Tester
Film strength, hardness, adhesion, and other properties are critical physical characteristics of coatings, and their magnitude directly influences the coating’s key performance attributes.
QKL Initial Drying Crack-Resistance Tester
It is primarily used to assess the early‑stage drying and crack‑resistance performance of multi‑layer architectural coatings. The instrument employs an axial‑flow fan for air delivery, with stepless speed control.
QMB-II Minimum Film-Forming Temperature Tester
Applicable standards: GB/T 9267-2008 and ISO 2115-76 are used to determine the minimum film‑forming temperature of polymer emulsions. When polymer emulsions are employed as surface‑treatment agents for coatings, adhesives, synthetic fibers, leather, paper, and other materials, their film‑forming properties constitute one of the most critical characteristics. By applying a polymer emulsion or latex paint onto a metal substrate, the water evaporates, allowing the polymer particles to interact and, at an appropriate temperature, to form a continuous, transparent film. The lowest temperature at which this film‑forming process can occur is defined as the minimum film‑forming temperature of the polymer emulsion, commonly abbreviated as MFT.
QML-type coating sand-drop abrasion testing machine
The coating sand-drop abrasion tester is primarily used for evaluating the abrasion resistance of paint coatings and the wear resistance of anodic oxide films on aluminum alloy architectural profiles.
Our company’s ISO flow cups are manufactured in accordance with the relevant provisions of the international standard ISO 24321, “Paints and varnishes — Determination of flow time using a flow cup” (fourth edition), and the national standard GB/T 6753.4, “Determination of paint flow time — ISO flow cup method,” while also taking into account actual production conditions. These flow cups are used to measure the flow time of Newtonian or near‑Newtonian liquids.
It is suitable for measuring the conditional viscosity of paints and other related products (with an outflow time of no less than 20 seconds). Under specified temperature conditions, the time required for a fixed volume of sample to completely flow through a hole of prescribed diameter is measured in seconds.
QNF Paint Film Recoatability Tester
The re‑adhesiveness of the coating film is determined by placing a preheated weight on a filter paper disc positioned on the coating film. After drying under specified temperature and humidity conditions for a set period, the weight and filter paper are removed, and the area of adhered filter‑paper fibers is assessed using a 4× magnifying glass.
Used for preparing standard test specimens of putty films.
This standard applies to the determination of the flow properties of liquid solvent‑based, two‑component, waterborne, and solid thermoplastic road marking paints used for applying various types of traffic markings on public roads in China. It may also be used as a reference for assessing the flow characteristics of road marking paints employed in urban roads, airports, ports, industrial and mining sites, forestry areas, and other similar settings.
QNQ-type falling-ball viscometer
The QNQ-type falling-ball viscometer is suitable for measuring the viscosity of high-viscosity, transparent coating products and is classified as a laboratory instrument. The viscosity it measures is a conditional viscosity, defined as the time, in seconds (s), required for a steel ball of specified dimensions to fall vertically through a glass tube containing the sample, between two marked lines, at a specified temperature.
QPG Coating Flow and Scraper Tester
It is typically used in conjunction with a sagging‑resistance tester to evaluate the leveling (dispersion) and sagging characteristics of coatings during application and drying, enabling comparative testing to achieve the desired surface finish. As a specialized test, it saves time, allowing for rapid assessment of product compliance and facilitating swift formulation adjustments.
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