Wet Film Coating Applicator

The wet film applicator controls the coating thickness through a calibrated metal gap, evenly spreading liquid coatings on the substrate surface to form a wet film. It is used in laboratories to simulate actual coating processes, testing the leveling, hiding power, and drying characteristics of coatings. It is suitable for the preparation and quality control of coating samples such as inks and paints.
Selection
When selecting a wet film applicator, it is essential to consider matching the coating width to the substrate size and choosing the gap depth based on the viscosity of the coating, typically within the range of 25–500 micrometers. Stainless steel material ensures wear resistance, while the handle design impacts operational stability. Multiple specifications can be combined to meet different thickness requirements, and attention should be paid to the clarity of the scale and the flatness of the blade edge.

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

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

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

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 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

Using a wire-wound coating process, with a wet film thickness of 32.0 μm and a coating width of 300 mm, it is suitable for substrates prone to curling and convexity, enabling uniform wet film coating, with a wire diaMeter of 0.36 mm.

$ 167.00

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

Wire-wound design, wet film thickness 118.9μm, diaMeter 9.5mm, stainless steel material, wear resistance and corrosion resistance, suitable for preparing specific film thickness wet-film.

$ 167.00

Using a wire-wound process, the wet film thickness is 27.4 μm, with a coating width of 300 mm and a total length of 400 mm. The stainless steel material ensures durability and precise coating results.

$ 167.00

Utilizing a wire-wound design, it controls the wet film thickness with a 0.61mm steel wire diaMeter, features a coating width of 300mm, and is constructed from durable stainless steel.

$ 167.00

Spreader wet film thickness of 200 microns, groove design is not easy to block and easy to clean, to ensure the uniformity and accuracy of Spreader, support laboratory manual or Automatic Film Applicator.

$ 114.00

It can prepare a wet film thickness of 18.3 microMeters, made of 303 stainless steel for wear and corrosion resistance, with a coating width of 300mm, suitable for coating various fluid materials.

$ 167.00

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

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

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.
Application of Wet Film Wheel Gauge in Continuous Measurement of Wet Film Thickness for Large-Area Coatings
The wet film wheel gauge is a mechanical tool used to measure the thickness of wet coatings, operating based on the geometric relationship of three coaxial disks (two parallel outer wheels on the sides and an eccentric inner wheel in the middle).
Operating specifications for on-site measurement of coating wet film thickness using wet film combs
This article introduces the operational standards for on-site measurement of coating wet film thickness using a wet film comb gauge. First, it explains the measurement principle of the wet film comb gauge, which involves estimating the thickness by observing the extent to which the teeth of the gauge are coated with the paint.
Selection of wet film thickness gauge range and accuracy requirements for comb teeth spacing.
When selecting a wet film thickness gauges, the key considerations are the measurement range and the accuracy of the comb teeth spacing. The range should cover the coating thickness with a slight margin to avoid being too small for measurement or too large, which could reduce resolution.
Wet film thickness gauge measures the wet film thickness of varnish.
The wet film thickness gauge is a mechanical tool used to measure the thickness of liquid varnish coatings. It operates by rolling the gauge so that the tips of its teeth contact the substrate and leave marks. The thickness value is then obtained by the operator reading the scale of the first tooth that becomes coated with the varnish.
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.
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.
Key Points for Wet Film Thickness Control in the Preparation of Fluorocarbon Coatings for Photovoltaic Backsheets Using Automatic Film Coating Machines
This article introduces the key points of controlling wet film thickness in the preparation of fluorocarbon coatings for photovoltaic backsheets using an automatic coating machine. Wet film thickness directly affects the performance and uniformity of the coating after curing, making its control crucial.
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.
The correct method for using a wet film thickness gauge.
The wet film thickness gauge is used to measure the thickness of uncured coatings. It determines the value by reading the scale through contact with the wet film using a toothed structure, which is crucial for controlling dry film thickness and estimating material usage.
Control of Wet Film Thickness—Field Operation Comparison Between Wheel Gauge and Comb Gauge
This article compares two tools for measuring wet film thickness: the wheel gauge and the comb gauge. When selecting a tool, factors such as coating characteristics, application environment, and precision requirements must be considered. Additionally, proper operation and environmental influences should be taken into account to ensure coating quality.
Rapid Assessment of Paint Hiding Efficiency by Minimum Wet Film Thickness Method
This article introduces a method for rapidly evaluating the hiding efficiency of coatings—the minimum wet film thickness method. Traditional methods are time-consuming, whereas this approach quantifies hiding power by measuring the minimum wet film thickness required for the coating to completely hide the substrate, making it simple and quick to operate.
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.