Wet Film Applicator

The wet film applicator rolls over the substrate surface using a grooved metal rod to scrape out a wet film coating of uniform thickness. It is used in laboratories to simulate the coating process and test the leveling and hiding power of coatings. It is suitable for the coating preparation of liquid materials such as inks and paints.
Selection
Select a coating rod with an appropriate gap based on the viscosity of the test material. Metal materials are suitable for conventional samples, while special coatings may opt for stainless steel. Consider matching the substrate size with the coating width, and manual operation meets general experimental needs.

Terms

Instruments

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

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

Spreader width 100mm, wet film thickness 60μm, high-quality wear-resistant corrosion-resistant alloy steel material, manual film can also be equipped with automatic Film Applicator, support non-standard customization.

$ 143.00

Stainless steel material ensures durability, wet film thickness range of 300-600μm, accuracy +/- 4μm, suitable for low viscosity liquid Spreader, can be combined with Automatic Film Applicator to achieve uniform Spreader.

$ 186.00

Spreader width 100mm, wet film thickness 40μm, wear resistant corrosion resistant alloy steel material, can be manually operated or with automatic Film Applicator to ensure coating conformity and Repeatability.

$ 143.00

Spreader width 100mm, wet film thickness 400μm, wear-resistant corrosion-resistant alloy steel material, can be used manually or with automatic Film Applicator, suitable for preparing uniform film coating to test performance.

$ 143.00

Spreader width 100mm, wet film thickness 100μm, wear-resistant corrosion-resistant alloy steel material, can be manually operated or used with automatic Film Applicator, suitable for a variety of materials to prepare uniform film.

$ 143.00

The 4-sided coating Applicator can be prepative of four wet film thicknesses, the accuracy is +/- 3μm, the application width is 80mm, the stainless steel material is resistant to corrosion, and the operation is simple only need to change the angle.

$ 1172.00

Spreader width 100mm, wet film thickness 250μm, wear-resistant corrosion-resistant alloy steel material, can be used manually or with automatic Film Applicator, suitable for a variety of materials to prepare uniform film.

$ 143.00

The 4-sided coating Applicator can be prepative of four wet film thicknesses, the conversion angle is easy to operate, the accuracy is +/- 3μm, the stainless steel material is resistant to acid and alkali erosion, and the application width is 80mm.

$ 1235.00

Stainless steel material to ensure durability, wet film thickness 30-120μm optional, accuracy +/- 2μm, application width 60mm, can be used with Automatic Film Applicator.

$ 186.00

Using stainless steel material, application width 300mm, wet film thickness 77.7μm, film accuracy of 0.1 micron to ensure uniform film.

$ 160.00

Double blade design can be prepared 75μm or 100μm two wet film thickness, effective application width 80mm, using molybdenum vanadium material, suitable for film proofing.

$ 138.00

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.
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.
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.