Varnish wear Tester

The varnish wear tester simulates daily wear conditions by reciprocating a rotating grinding wheel or friction head over the coating surface under standard pressure. Its function is to quantify the wear resistance of coatings, and it is applied in durability testing of surface coatings for furniture, automotive interiors, and other products.
Selection
When selecting, it is necessary to match the load range and grinding head type required by the testing standards, consider the compatibility between the sample size and the fixture, verify the counting accuracy of friction cycles, check whether the equipment material meets long-term stability requirements, and confirm the specifications of the power and air source interfaces.

Terms

Standards

Instruments

With two test stations, the load range is 50~ 1000g, and three typical wear resistance tests of alcohol, eraser and pencil can be carried out, which is suitable for wear resistance evaluation of various coatings and materials.

$ 572.00

Rotation speed 40rpm and roller diaMeter 150mm design, suitable for a variety of resilience material testing, abrasion Travel 40mm, test load optional 5N or 1N, to ensure efficient and accurate wear performance evaluation.

$ 1101.00

Double station design can simultaneously carry out two sets of tests, round trip 0-50mm adjustable, test load 80-990g adjustable range, equipped with a variety of weight to meet the wear resistance performance evaluation requirements under different load conditions.

$ 824.00

Made of stainless steel, the range is 10~ 100μm, Division 10μm, Dimension 65 * 36 * 1.5mm, suitable for Paints, varnish and other Coating Coating thickness measurement.

$ 119.00

With no-segment adjustable Friction Frequency, speed range of 60 times/minute, support 10-50mm friction distance free adjustment, mirror stainless steel material, provide a variety of clamping and wear mode, power failure memory function to ensure test continuity.

$ 520.00

Using standard sand free fall brushing layer, straight grinding to expose 4mm substrate; can quantify the abrasion per unit thickness of the paint layer of sand volume, the inner diaMeter of the catheter 19mm, sample holder 45 degrees angle fixed.

$ 538.00

Equipped with 18 standard color scale solution, prepared according to GB/T1722-92 standard, using an inner diaMeter of 10.75mm Glass testtube, Color comparison is carried out in the Color Assessment Cabinet to ensure accurate measurement results.

$ 136.00

Precise load of 500g ensures test Stability and is suitable for calibrating and testing Wear resistance Testers to improve equipment performance.

$ 93.00

The equipment is equipped with eight independent stations for simultaneous testing, supporting 24mm and 60.5mm Li Sharu motion trajectories, with a maximum motion range of 60.5mm. It uses a 395g fabric weight and a 2385g pressure clock system to achieve multi-standard material wear resistance evaluation.

$ 2981.00

ASTM 2801 compliant, 2D flow measurement of coatings when placed horizontally, film Film thickness range 100-1000 μm, wear and corrosion resistant alloy steel to ensure durability and accuracy.

$ 178.00

Ruby Probe wear-resistant, measurement range 0~ 5000μm, error +/- 2~ 3%, built-in LED light, IP65 Protection Rating, chemical resistant material, suitable for chemical cleaning.

$ 1217.00

Fiber wear-resistant pen design, Test accuracy of +/- 0.5 dyne, 15ML large capacity can be tested multiple times, 2-4 seconds to quickly obtain results, suitable for a variety of materials Surface Energy testing.

$ 99.00

Using fiber wear-resistant pen tip, size 138mm long, 15ml large capacity, Accuracy up to +/- 0.5 dyne, can test a variety of materials Surface Energy value and cleanliness, easy and fast operation.

$ 99.00

Made of wear-resistant and corrosion-resistant alloy steel, with a Hardness of 52 +/- 2HRC, it has upper and lower working surfaces to improve work efficiency and tool life.

$ 98.00

Equipped with six independent stations and two Lisaru motion trajectories, it supports a maximum of 999999 counts, and adopts a movement speed of 50rpm, which can simultaneously test the wear resistance performance of multiple sets of samples.

$ 2258.00

Articles

Selection of abrasion testing machine is based on the wear form, choosing between linear or rotational types.
When selecting a wear testing machine, the first step is to determine based on the primary wear forms the material actually encounters.
Friction and wear testing machine evaluates the wear resistance of self-lubricating polymer materials.
This article introduces how to use a friction and wear testing machine to evaluate the wear resistance of self-lubricating polymer materials. It explains the working principles of the testing machine, including the basic formulas for measuring the friction coefficient and wear rate.
Selection of Wear Testing Machine: Types of Abrasion Wheels and Load Setting Methods
The test results of the wear testing machine primarily depend on the type of grinding wheel and the load setting. Grinding wheels include rubber wheels, abrasive wheels, wire wheels, and fiber wheels, among others. The selection should be matched based on the material characteristics and the actual wear scenario.
The Taber Abraser evaluates the wear resistance of coatings.
The Taber abrasion tester simulates surface wear of materials through rotational friction, used to evaluate the wear resistance of coatings. During testing, a grinding wheel is used to rub the specimen under a fixed load, and performance is quantified by measuring mass loss or thickness changes after a specified number of cycles.
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.