Scraper preparator

A drawdown applicator is a manual coating tool that uses a smooth blade to evenly spread liquid samples onto a substrate, forming a wet film of fixed thickness. It is used in the coatings and ink industries to prepare test samples, simulating actual coating processes to evaluate properties such as leveling and hiding power.
Selection
When selecting a drawdown preparator, consider the substrate type and sample characteristics, match the blade gap to the sample viscosity, determine the applicator slot specifications based on testing standards, check the blade flatness and material corrosion resistance, and ensure ease of operation as well as convenience for cleaning and maintenance.

Terms

Instruments

The kit can realize automatic grinding fineness Gauge operation, improve test Repeatability, suitable for standard scraper fineness Meter supporting use, simplify the experimental process.

$ 1623.00

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

Adopt high-quality alloy steel scraper, Hardness and wear resistance and corrosion resistance; Magnetic suction design for quick replacement and cleaning; Film Film thickness 0~ 4500 μ m free adjustment, resolution up to 10 μ m, error only +/- 2 μ m.

$ 291.00

Using removable scraper and vacuum adsorption system, Spreader accuracy +/- 0.003mm, Spreader rate 5~ 180mm/s, heating temperature up to 180 ℃, improve film Stability and uniformity.

$ 7496.00

Adopt removable scraper for easy cleaning and replacement, with bracket design to improve running Stability; Spreader accuracy of +/- 0.003mm, Film thickness range of 0~ 10mm adjustable, effective Spreader area of 400 * 300mm, through stepless speed control to ensure uniform Spreader.

$ 2333.00

High-quality alloy steel scraper, Hardness and wear resistance and corrosion resistance, Film thickness adjustment range 0-4500 μ m, magnetic suction design for quick replacement and cleaning, differential head accuracy of +/- 2 μ m to ensure uniform and stable film.

$ 251.00

Spreader width 250mm, wet film thickness adjustment range 0-4500μm, scraper error +/- 2μm, High Accuracy Differential Head Control to meet the needs of various materials Moulding.

$ 340.00

High-quality alloy steel scraper accuracy of +/- 2μm, magnetic suction design for easy cleaning and replacement, Film thickness adjustment range of 0-4500μm to meet the needs of different materials Moulding, acid and alkali corrosion bracket to ensure long-term stable use.

$ 315.00

Effective Spreader width 300mm, suitable for all kinds of scraper type Film Applicators, to ensure the uniformity of Spreader, improve the film accuracy and conformity in the experiment or pRoduction.

$ 235.00

Equipped with 0.5/0 7/1.0 mm three thickness die frame, using baseplate fixed structure to ensure film uniformity, metal drawdown blade design to meet long-term use needs.

$ 157.00

The scraping speed is adjustable from 10-100mm/s, and the drawdown blade load 1.75-6 kg is adjustable. It is used with High Accuracy GrindoMeter to avoid personnel operation errors and improve test conformity.

$ 1364.00

Wire-wound design, film thickness 120 microns, total length 37.5cm, effective application width 25.5cm, stainless steel material to ensure durability and uniform Spreader.

$ 173.00

Equipped with three standard thickness templates (1 +/- 0.05, 0.7 +/- 0.035, 0.5 +/- 0.03), the membrane frame is fixed by spring compression column, which can be prepared for performance testing.

$ 199.00

Using wear-resistant stainless steel material, long service life, cleaning is not blocked, wet film thickness 270μm, Spreader width 300mm, suitable for accurate Spreader needs.

$ 178.00

Made of wear-resistant and corrosion-resistant alloy steel, with a Hardness of 52 +/- 2HRC, it has upper and lower working surfaces to improve work efficiency and tool life.

$ 98.00

Articles

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.
Alignment Accuracy Control Method for Four-Sided Preparator When Used with Automatic Coating Machine
This article explores the alignment accuracy control when using a four-sided preparator in conjunction with an automatic coating machine. Alignment accuracy directly affects the uniformity of the coating and the reliability of detection.
Film applicator standardized preparation of test samples.
The film applicator is a crucial tool in fields such as coatings and inks for preparing test samples, ensuring uniform thickness and a smooth surface through standardized operations. The article introduces its scraping-based working principle and the selection between manual and automatic types.
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.