Thin Layer Wet Film Applicator

The thin-layer wet film applicator spreads liquid samples through a calibrated groove to form a wet film layer of controllable thickness on a substrate. It is used for coating tests of paints and inks to simulate actual application conditions and observe leveling and coverage effects.
Selection
When selecting, consider the compatibility with the substrate, and stainless steel material is wear-resistant. Determine the number of grooves and the thickness range based on testing requirements, commonly ranging from 25 to 500 microns. The handle design affects operational stability, and it can be used in conjunction with a viscometer to verify the coating effect.

Terms

Instruments

Impact energy 3N, Impact device mass 75g, suitable for measurement of small or thin specimens and surface hardening layer, the minimum thickness can be measured 1mm and the minimum hardening layer depth 0.2mm.

$ 764.00

Made of stainless steel wear-resistant material, wet film thickness 41.1 μ m, application width 300mm, suitable for thin coating scraping test of soft materials, durable.

$ 160.00

Equipped with 254nm and 365nm dual-wavelength ultraviolet light sources, it supports thin-layer analysis and paper-layer analysis, can identify fluorescent substances, and is equipped with a 200 * 50mm filter.

$ 198.00

Using a formed pRoduction process, the film Film thickness is as thin as 4.6μm, the accuracy is up to 0.1 micron, and the effective Spreader width is 30cm. It can be used with an automatic Film Applicator and has the advantage of continuous wire.

$ 186.00

Wire-wound pRoduction process, wet film thickness 41.1 μ m, application width 300mm, stainless steel wear-resistant material to ensure durability, especially suitable for soft material thin coating Spreader.

$ 186.00

Adopting a wire-wound process, with a wet film thickness of 9.1 microns and a coating width of 300mm, it is suitable for ultra-thin coating requirements, offering high precision and ease of operation.

$ 167.00

Using the formed pRoduction process, the wet film thickness is only 4.6μm, the film accuracy is up to 0.1 micron, the effective application width is 30cm, and it has the advantage of continuous wire, which can be adapted to the use of automation equipment.

$ 167.00

Using extrusion process and chrome plating surface, the wet film thickness can be as low as 1.5 μ m, and the groove design is wide to improve the Coating Weight, which solves the problem of traditional steel wire loosening and cleaning difficulties, and realizes stable ultra-thin Spreader.

$ 477.00

Effective Spreader width 100mm, wet film thickness up to 600μm, high-quality wear-resistant corrosion-resistant alloy steel material, support manual film or with automatic Film Applicator to ensure good conformity Repeatability coating.

$ 143.00

Linear dispersion formed by cold extrusion processing technology, no risk of wire loosening, Spreader 2 μ m ultra-thin film, smooth surface easy to clean, wet film thickness 100 μ m, diaMeter 16mm to meet the needs of precision Spreader.

$ 477.00

Linear dispersion surface is formed by cold extrusion processing technology, no risk of wire loosening, wet film thickness 50 μ m, can achieve ultra-thin film Spreader, smooth surface and easy to clean.

$ 267.00

Wire-wound structure ensures 0.1 micron High Accuracy, wet film thickness 50.3 μm, stainless steel material is durable and easy to clean, and the wide-Rod Film Applicator achieves uniform coating.

$ 160.00

Spreader width 100mm, wet film thickness 37.5μm, wear-resistant corrosion-resistant alloy steel material, can be used manually or with automatic Film Applicator to ensure coating conformity and Repeatability.

$ 143.00

Spreader width 100mm, wet film thickness 50μm, wear resistant corrosion resistant alloy steel material, suitable for manual or automatic Film Applicator, can be prepared uniform film for performance testing.

$ 143.00

Using formed pRoduction process, wet film thickness 91.4 μm, accuracy of 0.1 micron, support multi-layer Spreader, stainless steel material with excellent Abrasion Resistance, suitable for high abrasion experimental environment.

$ 167.00

Articles

Sensitivity Enhancement of Dark Box UV Analyzers in Thin-Layer Chromatography Fluorescence Detection
This article explores how to enhance the sensitivity of dark box ultraviolet analyzers in fluorescence detection for thin-layer chromatography. Sensitivity is influenced by factors such as light source stability, wavelength accuracy, sample background, and ambient light.
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.
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.
The importance of maintaining a constant speed when using a wet film applicator for coating.
When using a wet film applicator, maintaining a constant speed during the scraping process is crucial for coating uniformity. The scraping speed directly affects the wet film thickness, and fluctuations in speed can lead to defects such as streaks and uneven thickness, compromising the repeatability and accuracy of experimental results.
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.