Pigment Coating Blade Rod

A drawdown bar is a coating tool used to manually apply a uniform wet film on a substrate, serving to evaluate the hiding power, color, and leveling properties of pigments, paints, or inks. Its principle relies on controlling the film thickness through the gap between the blade and the substrate, simulating actual coating processes. It is primarily applied in laboratory quality control, formulation development, and comparative testing.
Selection
When selecting a pigment drawdown bar, consider the material, such as stainless steel for corrosion resistance, ensure the length matches the substrate width, and select a gap range that covers the required film thickness specifications. Check that the blade edge is flat and free of defects, and that the handle design facilitates comfortable grip and operation. Determine the gap accuracy based on test standards, ensuring compatibility with the substrate to avoid reactions. Refer to common industry specifications, such as gap models ranging from 25 μm to 250 μm.

Terms

Standards

Instruments

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

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

Equipped with dual coating methods of wire rod and blade, with an infinitely adjustable coating speed of 1–300 mm/s, wire rod accuracy of ±0.001 mm, blade accuracy of ±0.003 mm, and optional heating and vacuum adsorption functions to meet coating requirements of various thicknesses.

$ 9433.00

Using the formed pRoduction process, Coating Weight is about twice that of the wire-wound coating Rod, wet film thickness is 13μm, film accuracy reaches 0.5 μm, and the material is 304 stainless steel.

$ 120.00

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

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

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

The wire-wound process can pRoduce a wet film thickness of 96 μm with a coating width of up to 300 mm, utilizing stainless steel material to ensure durability and precise coating control.

$ 167.00

With meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, clamshell drawdown blade design for easy cleaning, support 1~ 300mm/s stepless speed regulation and RT +~ 180 ℃ heating temperature control.

$ 6367.00

The clamshell drawdown blade is designed for easy cleaning, the meyer Rod coating accuracy is +/- 0.001mm, the Blade Coating Film thickness range is 0.1-10 mm, and the servo motor is equipped to realize 1-300mm/s stepless speed regulation to meet the needs of the laboratory High Accuracy film.

$ 8142.00

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

Wet film thickness 22.9 microns, diaMeter 9.52 mm, the forming Rod uses an extrusion process to process continuous grooves, with no wire breakage and easy cleaning; the wire-wound Rod is based on the traditional principle, and there are differences in coating amount.

$ 167.00

Using meyer Rod coating accuracy +/- 0.001mm and Blade Coating accuracy +/- 0.003mm, clamshell Drawdown blade is easy to clean, supports 1-300mm/s stepless speed regulation, Glass countertop heat resistance 600 ℃ and scratch resistance.

$ 9433.00

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.
Laboratory dispersers achieve efficient dispersion of paint pigments.
This article introduces how laboratory dispersers efficiently disperse paint pigments. They break up pigment agglomerates through mechanical actions such as shear force, involving three stages: wetting, dispersing, and stabilizing.
Laser particle size analyzer analyzes particle size distribution of paint pigments.
This article introduces the application of laser particle size analyzers in analyzing the particle size distribution of paint pigments. It mentions that the particle size distribution of pigments affects the optical properties, stability, and rheological characteristics of coatings.
Blue-style grinder achieves efficient grinding of ink fineness.
The basket mill is a type of wet grinding equipment used in fine chemical fields such as ink production. It utilizes a high-speed rotating impeller to drive grinding media, generating shear and impact forces on the slurry, thereby dispersing pigment particles and reducing their fineness.
Ink fineness gauge measures the dispersion degree of pigment particles.
The fineness of grind gauge is a method used to evaluate the dispersion level of pigment particles in ink.
Multi-angle colorimeter detects color changes in pearlescent coatings.
Pearlescent coatings contain special flake pigments that produce color effects that vary with the viewing angle, known as "goniochromism." Traditional single-angle measurements struggle to accurately capture this characteristic.
UV-Vis Spectrophotometer Measures Ink Pigment Concentration
This article introduces the method of measuring the concentration of ink pigments using a UV-Vis spectrophotometer. The principle is based on the Lambert-Beer law, which calculates the concentration by measuring the absorbance of the pigment solution at specific wavelengths.
Comparison of Pigment Fineness Dispersion between Flat Grinding Mill and Sand Mill
Application of Colorimeter and Color Matching Box in Pigment Color Inspection
A colorimeter and a light booth are two primary tools in pigment color inspection. The colorimeter measures color through photoelectric principles, while the light booth provides a standardized light source environment for visual evaluation of color effects, metamerism, and other phenomena.
Whiteness meter measures the whiteness of white pigments
This article introduces the standard method for measuring the whiteness of white pigments using a whiteness meter. Whiteness is an important optical indicator for evaluating the quality of white pigments, and a whiteness meter can provide objective measurements.
The effect of a flat grinder on the preparation of color paste's tinting strength
This article primarily explores the impact of process parameters on tinting strength during the preparation of color pastes using a flat grinding machine. Tinting strength is a core performance indicator of color pastes, reflecting the coloring efficiency of pigments within the system.
Sieve Residue Analyzer and Sieve Analysis for Determining Pigment Particle Size Distribution
This article introduces how the sieve residue analyzer measures the particle size distribution of pigments through mechanical sieving.
Black-and-white checkerboard and reflectometer for measuring pigment hiding power
This article introduces two methods for measuring the hiding power of pigments: the black-and-white checkerboard method and the reflectometer method.
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.
Hiding power measurement: Equivalence of mass per unit area method and reflectance contrast method.
Covering power is a key indicator for evaluating the optical performance of coating materials such as paints, inks, and pigments, reflecting the material's ability to conceal the color of the substrate. Accurate determination of covering power is crucial in industrial quality control and research and development.