I-shaped Coater

The I-shaped applicator is a metal strip with an I-shaped cross-section that forms a uniform wet film on the substrate surface when pushed by a scraper. It controls coating thickness through gap height and is used in laboratories to simulate roll coating and blade coating processes, as well as to test properties such as paint leveling and hiding power. It is suitable for coating tests of liquid materials such as inks and adhesives.
Selection
When selecting, consider the substrate thickness and the coating thickness required by the test standard to match the applicator's gap range. Stainless steel is corrosion-resistant, while carbon steel requires rust prevention maintenance. Narrow groove designs save samples, while wide grooves enhance operational stability. Choose the appropriate gap based on the sample viscosity—use a larger gap for high viscosity and a smaller gap for low viscosity.

Terms

Instruments

Using CR12 molybdenum vanadium material to ensure durability, providing 75-600μm multi-film thickness range, double-sided design can complete different thickness Spreader at one time, effective application width 80mm to meet the requirements of standard samples.

$ 293.00

Made of hard stainless steel, it is not subject to acid and alkali erosion; the multi-faceted I-shaped design can be scraped with 4 different thicknesses of wet-film, including 100/150/250/300μm, and the operation is simple. Just change the angle.

$ 199.00

Made of hard stainless steel, resistant to acid and alkali erosion; multi-faceted I-shaped design can provide 30/60/90/120μm four film thicknesses; application width 160mm, simple operation only need to change the angle to obtain different thicknesses.

$ 283.00

The Spin Coater is controlled by touch screen, the acceleration range is 100~ 4000rpm/s, and the speed can be automatically corrected by A/K selection. The motor torque is large and the operation is smooth, which is suitable for the assembly line process.

$ 2494.00

Hard stainless steel material corrosion resistance, can be prepared four different thickness wet-film, application width 80mm, operation only need to change the angle can quickly switch film thickness.

$ 186.00

Using Ubbelohde DIN size I specification, viscosity measurement range of 2~ 10cst, based on the principle of capillary tubing flow time and viscosity proportional ratio, accurate measurement is achieved.

$ 461.00

Dimensions of special-shaped support ring, suitable for HM6560 Leeb Hardness Tester, ensure stable support on complex surfaces, improve Measurement accuracy and applicability.

$ 238.00

Stainless steel corrosion resistance, can be prepared four different thickness wet-film, application width 80mm, simple operation only need to change the angle, to ensure that the sample can be compared evenly.

$ 186.00

Application width 100mm, wet film thickness 200μm, stainless steel material to ensure corrosion resistance, provide uniform Spreader effect to meet the needs of laboratory testing for precise control of sample thickness.

$ 146.00

Using stainless steel material, acid and alkali erosion resistance, can be prepared 50/75/100/150μm four thickness wet-film, application width 80mm, operation only need to change the angle to obtain different film thickness.

$ 186.00

Adopting Japanese I15 standard design, the external aperture is 6.0 +/- 0.5mm, and the internal aperture is 3.5 +/- 0.05mm, which can quickly measure Coating viscosity and take the average value of three measurements to ensure accuracy.

$ 133.00

K-shaped cogging design, large tooth spacing, suitable for high viscosity Coating, wet film thickness 250μm, leveling well, the bottom of the cogging is wider, suitable for applications with large glue viscosity.

$ 120.00

K-shaped cogging structure, large tooth spacing, suitable for high viscosity Coating, wet film thickness 100 μ m, excellent leveling, 304 stainless steel material is durable.

$ 157.00

K-shaped cogging bottom design, large tooth spacing, suitable for high viscosity Coating, wet film thickness 300μm, leveling well, suitable for large glue viscosity application scenarios.

$ 120.00

K-shaped cogging structure design, large tooth spacing, suitable for high viscosity Coating, wet film thickness 200μm, excellent leveling performance, suitable for glue and other viscous materials Spreader.

$ 120.00

Articles

Application of Two-Step Method with Pre-Coating and Fine-Coating in Eliminating Bubble Defects for Dual-Blade Coater
The dual-blade coater employs a two-step method of pre-coating and precision coating to eliminate bubble defects during the coating process. In the pre-coating stage, high shear force is applied to break the bubbles in the slurry, causing them to rupture and rise to the surface. The precision coating stage then precisely controls the coating thickness, removing any remaining bubbles to form a uniform wet film.
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.
Coating film preparation techniques: comparison between wire-wound applicators and wet film preparators
This article compares two commonly used tools in laboratory coating film preparation: the wire rod coater and the wet film applicator.
Application of Wire Bar Coater in the Preparation of Coating, Ink, and Printing Samples
A wire-wound rod coater is a laboratory tool used for preparing uniform wet film coatings on flat substrates, widely applied in the production of samples in the coatings, inks, and printing industries.
The difference between a wire bar coater and a gap-type wet film applicator.
The wire-wound drawdown bar directly quantifies the coating through the gap between wires, making it suitable for thin coating preparation with high precision, particularly for low-viscosity fluids. In contrast, the gap-type wet film applicator indirectly controls film thickness through the groove depth, with the actual coating thickness significantly influenced by material properties, making it more suitable for high-viscosity coatings and thick film preparation.
The difference between a wire-wound rod coater and an extrusion coating rod
This article primarily compares the technical differences between wire-wound and extrusion coating rods. Although they are interchangeable in most scenarios, there are subtle variations in liquid loading capacity due to their distinct groove principles.
Wire rod Applicator: Principles, Applications, and Selection Guide - A Precision Coating Tool
This article provides a detailed introduction to the working principles of a Wire rod Applicator, including the mechanism by which it controls wet film thickness through the gap between stainless steel wires. It elaborates on its wide range of applications in fields such as coatings, inks, and lithium batteries, and summarizes its technical advantages, including precise control and ease of operation.