Coating Blade Applicator Rod

A coating drawdown bar is a metal rod with graduated markings, used to evenly spread paint onto a substrate to form a wet film of a fixed thickness. It is employed in laboratories to simulate the coating application process, testing the leveling, hiding power, and thickness uniformity of coatings. It is widely used in paint quality control and formulation development.
Selection
Select the rod diameter based on the viscosity of the paint to be tested, with thicker rods for high viscosity. Determine the groove precision according to the testing standards; for routine inspection, choose ±2 μm. Ensure the substrate width matches the rod length, and select stainless steel or plastic materials based on the experimental environment. Monitor the degree of groove wear and replace the rod promptly when necessary.

Terms

Standards

Instruments

Support bar and Drawdown blade double coating method, suitable for high, medium and low viscosity materials; coating speed 1~ 300mm/s stepless adjustable, Blade Coating accuracy +/- 3μm; equipped with innovative clamshell magnetic Drawdown blade and simple bar installation, easy to clean and load; Heating and Vacuum chuck function to improve Spreader mass.

$ 10562.00

Support bar and Drawdown blade two coating methods, suitable for different viscosity materials. Equipped with heating and Vacuum chuck function, servo motor to ensure stable operation. Drawdown blade film thickness control accuracy is high, uniform film.

$ 6205.00

With bar and Drawdown blade two coating methods, coating speed 1-300mm/s stepless speed regulation, Blade Coating thickness 0.1-10 mm, using clamshell design for easy cleaning, equipped with High Accuracy Film Applicator to ensure Spreader uniformity.

$ 5237.00

With meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, support Vacuum chuck and fixture fixing, coating table size 1440 * 1030mm, clamshell design is easy to clean.

$ 19438.00

With bar and Drawdown blade two Spreader mode, using clamshell Drawdown blade head and new bar Installation method, easy to clean. Spreader speed and length can be freely adjusted, film thickness control accuracy is high, suitable for Glass, cardboard and other substrates.

$ 2978.00

Drawdown blade and bar two coating methods, support speed and length adjustment, high film thickness control accuracy, and with Vacuum chuck function, easy to handle soft substrate, easy to clean.

$ 7496.00

Using meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, clamshell Drawdown blade is easy to clean, coating speed 1~ 300mm/s stepless speed regulation, suitable for a variety of substrate uniform Spreader.

$ 5237.00

Using meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, clamshell drawdown blade design is easy to clean, coating speed 1~ 300mm/s stepless speed regulation, suitable for coating of various materials.

$ 11046.00

Bar and drawdown blade double coating method, coating speed 1-300mm/s stepless speed regulation, meyer Rod coating accuracy +/- 0.001mm, clamshell drawdown blade design is easy to clean, Touchscreen control operation is simple.

$ 2494.00

Drawdown blade and bar coating methods, coating speed 1-300mm/s stepless speed, meyer Rod coating accuracy +/- 0.001mm, clamshell Drawdown blade design for easy cleaning, Vacuum chuck for soft substrates.

$ 6851.00

Using meyer Rod coating accuracy +/- 0.001mm and Blade Coating thickness 0.1~ 10mm, clamshell drawdown blade is easy to clean, supports 1~ 300mm/s stepless speed regulation and 180 ℃ heating temperature control.

$ 4269.00

Utilizing a dual coating method with wire rod and doctor blade, the coating speed is adjustable from 1 to 300 mm/s with stepless speed control, ensuring high precision in film thickness control. Equipped with vacuum adsorption and heating functions, the temperature uniformity reaches ±1°C. The flip-top design facilitates easy cleaning.

$ 24279.00

Drawdown blade and bar coating method, with Vacuum chuck function, high film thickness control accuracy, application length and speed can be adjusted freely, easy to clean, suitable for a variety of substrates.

$ 11692.00

Adopt meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, equipped with clamshell Drawdown blade for easy cleaning, support 1-300mm/s stepless speed regulation and 1000 * 600mm Spreader area adjustment.

$ 8465.00

Using meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, clamshell Drawdown blade design is easy to clean, support coating speed 1~ 300mm/s stepless speed regulation, suitable for a variety of materials film sample preparation.

$ 5883.00

Articles

Laboratory rod coater for submicron wet film preparation of photoresist.
This article introduces the process of using a laboratory bar coater to prepare submicron wet films of photoresist.
Standard ink film preparation with a blade coater before tack testing of offset printing inks.
This article introduces the method of preparing a standard ink film using a blade coater before testing the tackiness of offset printing inks. It explains the principle of controlling ink film thickness by adjusting the blade gap and details the operational steps from securing the substrate and applying the ink to completing the coating process.
The wire bar coater with heating and vacuum adsorption is used for the preparation of perovskite solar cell layers.
This article introduces a new technique for preparing the light-absorbing layer of perovskite solar cells: a wire-bar coater with heating and vacuum adsorption capabilities.
Heating and blade coating of gel electrolyte films for zinc-ion batteries.
This article introduces the heating doctor-blade coating method for preparing gel electrolyte films in zinc-ion batteries. The method involves spreading a slurry onto a substrate using a doctor blade, followed by heating to evaporate the solvent and form a film.
Blade-coating preparation of hole transport layers for perovskite solar cells.
This article introduces the method of preparing the hole transport layer for perovskite solar cells using the doctor-blade coating technique. The doctor-blade coating method involves spreading the solution evenly on the substrate with a blade to form a thin film, making it suitable for large-scale production.
Heating coating machine is used for the doctor-blade coating of gel electrolyte films in zinc-ion batteries.
This article introduces the blade coating process for preparing gel electrolyte films for zinc-ion batteries using a heated coating mechanism. By controlling parameters such as temperature, coating speed, and gap height, this method enables the fabrication of films with uniform thickness and smooth surfaces.
The polymer film is formed by blade coating on a glass substrate using a film applicator.
This article introduces the technique of using a film applicator to doctor-blade polymer films onto glass substrates.
Wet film applicator for applying color paint to a specified wet film thickness.
A wet film applicator is a laboratory tool used to apply a predetermined thickness of wet paint film onto a flat substrate, providing the foundation for subsequent dry film performance testing.
Operating Specifications and Result Interpretation of Paint Fineness Gauges
The fineness gauge is used to measure the dispersion of particles in paint. During operation, the sample should be applied to the groove under standard conditions, and a scraper is used to spread it evenly to form a wet film. The particle visibility is then observed under appropriate lighting, and the fineness value is read from the corresponding scale.
Key Points for Controlling Coating Longitudinal Uniformity with Manual Rod Coater Constant Speed Dragging Techniques
This article discusses how to control the longitudinal uniformity of the coating by dragging at a constant speed when using a manual wire rod coater. A constant-speed drag is crucial, as it directly determines the consistency of the wet film thickness.
Derivation and Validation of the Quantitative Relationship between Wire Diameter and Wet Film Thickness in Wire Wound Coating Bars
This paper investigates the relationship between the wire diameter in a wire-wound rod coater and the wet film thickness. Theoretically, under ideal conditions, the wet film thickness is approximately half of the wire diameter.
Actual Coating Thickness Deviation of Stainless Steel Wire Rod Coaters at Different Slurry Solid Contents
This article analyzes the actual coating thickness deviation of stainless steel wire rod coaters under different slurry solid contents. The study finds that the solid content of the slurry affects its viscosity and flowability, leading to deviations in the actual coating thickness from the theoretical value.
Testing principle of the mandrel bending method for paint film flexibility tester
The shaft-rod bending method is a common technique for testing the flexibility of paint films. It involves bending a test panel coated with the paint film over shafts of different diameters to simulate the deformation of the coating under stress.
Film applicator standardized preparation of test samples.
The film applicator is a crucial tool in fields such as coatings and inks for preparing test samples, ensuring uniform thickness and a smooth surface through standardized operations. The article introduces its scraping-based working principle and the selection between manual and automatic types.
Paint Flexibility Tester for Measuring Bending Adaptability
The coating flexibility tester is a device used to assess whether a coating cracks or peels when bent. During testing, the coated sample is bent around mandrels of different diameters, and the surface condition is examined. The flexibility is evaluated based on the smallest mandrel diameter at which no cracking occurs.