Varnish Scraper Fineness Gauge

The varnish fineness gauge uses a wedge-shaped groove scraper with a scale to spread a coating sample into a gradient film. The particle size of pigments or impurities is determined by visually observing the scale value corresponding to the position where particles appear. It is used for rapid on-site testing of dispersion uniformity in the production of coatings and inks to control product quality.
Selection
When selecting, consider a measurement range that covers common requirements of 0-50μm or 0-100μm. Opt for stainless steel material for wear resistance and rust prevention, with clear and durable scale lines on the scraper. Compare the scale grading with industry standards to ensure ease of operation, making it suitable for use in laboratory or workshop environments.

Terms

Standards

Instruments

The kit can realize automatic grinding fineness Gauge operation, improve test Repeatability, suitable for standard scraper fineness Meter supporting use, simplify the experimental process.

$ 1623.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-250μm, ergonomic design for easy holding, suitable for particle size and fineness of grinding inspection.

$ 1531.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-15μm, ergonomic design, easy to hold, suitable for particle size and fineness of grinding detection.

$ 1157.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-100μm, suitable for particle size and fineness of grinding inspection, ergonomic design for easy grip.

$ 1157.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-50μm, ergonomic design for easy holding, suitable for particle size and fineness of grinding inspection.

$ 1157.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-25μm, ergonomic design, easy to hold, suitable for particle size and fineness of grinding detection.

$ 1157.00

Made of Hardness 52 +/- 2HRC wear and corrosion resistant alloy steel with 0-100μm range and 5μm Graduation, the single-channe design meets several international standards for a wide range of material particle Fineness measurement.

$ 172.00

Double groove design can achieve rapid fineness detection, Measurement range 0~ 100μm, accuracy +/- 2 microns, wear-resistant and anti-corrosion stainless steel material, suitable for a variety of material fineness determination.

$ 1086.00

The scraping speed is adjustable from 10-100mm/s, and the drawdown blade load 1.75-6 kg is adjustable. It is used with High Accuracy GrindoMeter to avoid personnel operation errors and improve test conformity.

$ 1364.00

Measurement accuracy of +/- 2 microns, wear resistance and corrosion resistance, handheld operation, suitable for rapid detection of various material fineness.

$ 1086.00

Stainless steel is more durable, with a length of 75mm, suitable for all models of GrindoMeter, and meets ASTM D1210, DIN 53203 and other standards to ensure accurate fineness measurement.

$ 549.00

Made of stainless steel, the range is 0-100μm, Graduation is 5μm, and the plane flatness of the scraper is 0.003mm to ensure accurate and reliable particle fineness measurement.

$ 138.00

Made of Swiss tool steel, Abrasion Resistance and corrosion resistance are excellent, accuracy reaches +/- 2 microns, wide groove design is easy to handle, suitable for a variety of material fineness detection.

$ 1323.00

Double groove structure can be measured twice at the same time, Measurement range 0~ 25μm, accuracy +/- 2μm, hardened stainless steel material wear and corrosion resistance, suitable for a variety of material fineness detection.

$ 1086.00

Made of Swiss 1.2805 tool steel, Abrasion Resistance and corrosion resistance are excellent; the accuracy reaches +/- 2 microns, the groove width is 37mm, and the graded slope design is easy to quickly read the fineness value.

$ 1323.00

Articles

Drop Ball Method of Impact Testing Machine for Evaluating the Impact Resistance of Varnish
This article introduces the use of the falling ball method with an impact testing machine to assess the impact resistance of varnish. The method involves dropping a steel ball of specified weight from a predetermined height onto a test panel coated with varnish to observe whether the coating cracks or peels off, thereby evaluating its impact resistance.
Wet film thickness gauge measures the wet film thickness of varnish.
The wet film thickness gauge is a mechanical tool used to measure the thickness of liquid varnish coatings. It operates by rolling the gauge so that the tips of its teeth contact the substrate and leave marks. The thickness value is then obtained by the operator reading the scale of the first tooth that becomes coated with the varnish.
Method for determining the dynamic viscosity of varnish using a falling ball viscometer
This article introduces a method for measuring the dynamic viscosity of varnish using a falling-ball viscometer. It is based on Stokes' law, which calculates viscosity by measuring the time required for a standard small ball to fall a fixed distance in a vertical glass tube filled with varnish.
Muffle Furnace Ash Test Method for Determination of Inorganic Filler Residues in Varnish
This article introduces the method of using the muffle furnace ash test to determine the residual amount of inorganic fillers in varnish. The inorganic substances in varnish can affect the performance of the coating, making accurate determination of ash content important for quality control.
Pull-off Adhesion Tester for Quantitative Measurement of Varnish Adhesion.
The pull-off adhesion tester quantitatively measures the adhesion strength between a varnish coating and the substrate by vertically pulling off a test column. It is essential to ensure proper substrate preparation, complete curing of the coating, and the use of a suitable adhesive during testing.
Buchholz indentation tester measures the indentation hardness of varnish.
The Buchholz indentation test is a method for measuring the indentation hardness of coatings such as varnishes. It involves applying a specific indenter to the coating surface under a standard load, and after unloading, the length of the residual indentation is measured. A longer length indicates lower hardness.
Visual color comparison method using colorimetric tubes to determine the color phase of varnish.
Colorimetric tube visual colorimetry is a method used to determine the color hue tendency of varnish samples by directly comparing them with a standard color scale using the human eye. During operation, samples and standard liquid columns should be prepared using colorimetric tubes of consistent specifications under standard lighting conditions, and the hue differences should be observed in parallel.
Flash point tester for determination of closed cup flash point of varnish
This article introduces the method for determining the closed-cup flash point of varnish using a flash point tester. The flash point refers to the minimum temperature at which the vapor on the surface of the varnish ignites momentarily when exposed to a flame after heating. It is a crucial indicator for assessing the fire risk during its production, storage, and transportation.
Thermogravimetric Analyzer for Determining the Solid Content of Varnish
The principle of determining the solid content of varnish using a thermogravimetric analyzer is as follows: when the sample is heated, volatile solvents and moisture evaporate, leading to a decrease in mass, while the remaining solid mass stabilizes. The solid content is calculated by comparing the initial and final mass ratios.
Adhesion Tester Pull-Off Method for Determining Adhesion Strength of Varnish
This article introduces the test method for measuring the adhesion strength of varnish using the pull-off method. It involves adhering test cylinders to the coating and substrate with adhesive, then vertically pulling them apart with an instrument to record the maximum pulling force and calculate the adhesion strength.
Key steps for measuring the efflux time of varnish using a viscosity cup method
This article introduces the method for measuring the outflow time of varnish using a viscosity cup. The principle is based on Poiseuille's law, where viscosity is estimated by recording the time it takes for the liquid to completely flow out from the small hole at the bottom of the cup—longer times typically indicate higher viscosity.
Application of Gloss Meter in Gloss Measurement of Varnish Coatings
A gloss meter is used to measure the gloss of varnish coatings by detecting surface-reflected light to quantitatively assess the appearance of the coating. The measurement is based on the principle of specular reflection of light, commonly employing angles such as 20°, 60°, and 85° to correspond to different gloss ranges, and follows standard formulas for calculation.
The pendulum hardness tester tests the scratch resistance limit of varnish.
The pendulum hardness tester measures the hardness of varnish by observing the attenuation of the pendulum's swing on the coating surface, with faster attenuation indicating a softer coating. The scratch resistance of varnish depends not only on hardness but also on elasticity and toughness. Hardness testing sets the basic threshold for scratch resistance.
Scraper Fineness Gauge for Determining the Fineness of Paste Inks
The Scraper Fineness Gauge is used to measure the dispersion degree of pigment particles in products such as paste inks. Its principle involves scraping a film on a scraper plate with wedge-shaped grooves and observing the scale at which particles appear to assess the fineness, with the result expressed in micrometers.
An article tells you how to choose a fineness gauge.
This article introduces how to select and use a grind gauge. It is a tool for measuring particle size in coatings and inks. When selecting one, the first step is to choose the appropriate range based on the estimated fineness of the sample (commonly 0-50 µm or 0-100 µm).