Wet Film Sag Tester

The wet film sag tester evaluates the sag resistance of coatings by observing the degree of flow or sagging of the wet film under gravity, with the coated test panel placed vertically. It is used to assess the anti-sag performance of coatings during application, guiding adjustments in coating formulations and control of construction processes.
Selection
When selecting, consider the type and viscosity range of the paint to be tested, ensuring compatibility with the instrument's measurement range. Verify the accuracy of the scale and the texture of the plate to ensure test reproducibility. Choose an appropriate specification based on the required coating thickness, balancing ease of operation and maintenance costs.
groove depth

Terms

Instruments

A wet film with a film thickness of 50~ 675 μ m was prepared by using a coating scraper, and the sag property was observed when placed vertically. The maximum thickness without sag was expressed, which was suitable for Paints testing.

$ 411.00

Spreader 5 kinds of film thickness, the other side of the test sag cover 10 kinds of thickness 75-300 microns, stainless steel material acid and alkali resistance, in line with ASTM standards, easy to accurately evaluate film performance.

$ 1432.00

The stainless steel material ensures durability, the film thickness range is 450~ 675 μm, and the groove difference is 25 μm, which is convenient for accurate determination of Coating sag on site.

$ 154.00

Film thickness range 650~ 875 μ m, Graduation 25 μ m, stainless steel material, Dimension 120 * 22 * 20mm, suitable for the determination of relative sag of Paints.

$ 154.00

The multi-groove coating scraper can scrape 10 wet-films of different thicknesses at one time, the thickness difference of adjacent films is 25um, and the wide film thickness range of 50-675um is supported. It is convenient to visually observe the sag situation by placing the test plate vertically.

$ 315.00

Measuring wet-film flow thickening in the vertical state, controlling the physical performance of the coating to select the appropriate wet film thickness to ensure uniform film thickness, Film thickness range 450-675μm, in line with GB/T 9264 and ASTM D 3730 standards.

$ 146.00

The device can pRoduce 10 different film thickness stripes, film thickness range 250-475μm, Graduation 25μm, suitable for vertical position testing, to help evaluate coating sag tendency and ensure stable test conditions.

$ 157.00

Made of stainless steel, the film thickness range is 250~ 475μm, Graduation 25μm, Dimension 120 * 22 * 20mm, suitable for standard sag performance testing.

$ 154.00

Dual function design can test leveling and sag at the same time, flow plane supports 5 kinds of film thickness Spreader, flow surface provides 10 kinds of film thickness range 75-300 micron, stainless steel material is acid and alkali resistant, in line with ASTM D4400 and D2801 standards.

$ 1248.00

Determination of wet-film flow thickening in the vertical state, control the physical performance of the coating to select the appropriate wet film thickness, film Film thickness 650-875 μ m, using high-quality wear-resistant corrosion-resistant alloy steel material to ensure durability and accuracy.

$ 146.00

The wet film thickness is 18 microns, the application width is 60 mm, and the 304 stainless steel material is formed to ensure that the film is uniform and suitable for a variety of experimental needs.

$ 120.00

Made of wear-resistant and corrosion-resistant alloy steel to ensure durability and accuracy, film Film thickness range 850~ 1075μm, adjacent film thickness difference of 25μm, suitable for vertical, corner, round hole, arc workpiece painting control.

$ 146.00

Made of wear-resistant and corrosion-resistant alloy steel, with high durability and accuracy. The film width is 6mm, the film spacing is 1.5mm, and the film thickness difference between adjacent strips is 25μm, which is suitable for a variety of painting scenes.

$ 146.00

Equipped with 10 grooves design, film thickness range 50-275μm, Graduation 25μm, support vertical placement test, ensure film uniformity evaluation, meet the requirements of multi-national standards.

$ 157.00

The device provides 450-1000 μm film thickness test range, Graduation 50/100 μm, equipped with 10 grooves, can accurately simulate the vertical top coating film sagging behavior, ensuring stable and reliable test conditions.

$ 157.00

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.