leveling/Flow hanging tester

In most cases, leveling is an expected performance of paint, manifested in a dry film surface that is as smooth as possible and with minimal surface scratches, spray marks, and other unevenness. And sagging is considered a paint defect, especially in the vertical surfaces, edges, and corners of the workpiece. The commonly used terms, such as streaks or tears, vividly describe this defective appearance. It is not impossible to measure the leveling and sagging characteristics using a viscometer, but it is very difficult.

A simple comparative test of the leveling and sagging characteristics of paint during the stage between coating and drying

Test leveling and hanging on the same tester

Stainless steel structure, corrosion-resistant

standard：

ASTM D 2801

FTMS 141a, Method 4494

Leveling test steps：

■ Use a tester to apply the tested paint onto a flat substrate (test cardboard), producing 5 pairs of stripes of various coating thicknesses

■ Keep the test panel in a horizontal position and observe which stripes are clustered together

Usually, when two stripes merge, there is a faintly visible gap in the middle, and the gap used at this position is the leveling position

Flow hanging test steps：

Using a tester to apply and produce 10 pairs of stripes of various coating thicknesses

Immediately place the test panel in a vertical position after coating, with the thinnest coating stripes placed above and avoiding vibration

The merging of stripes depends on the tendency of flow hanging

It is very difficult to reproduce the results of the experiment. It is very important to ensure the following conditions during the experiment: stable climate environment during the experiment, uniformity of the coating, and setting the evaluation time

ordering information

Model name

0810 leveling/Flow hanging tester Five leveling test intervals:0.1/0.2/0.3/0.5/1.0 mm

Ten flow hanging test intervals:75/100/125/150/175/200/225/250/275/300μm

Basic configuration:

Leveling and hanging tester, carrying case;

NYPC leveling tester

NYPC leveling testerThis instrument provides a method for evaluating the leveling performance of newly applied coatings before curing, thereby reducing or eliminating surface streaks caused by brushing or other coatings. Using this specially designed film applicator to evaluate leveling performance is similar to the evaluation of roll coating methods, but more stable than roll coating. Due to various factors affecting leveling and sagging, the testing of these properties should not be confused with each other. Leveling testing is conducted on a horizontal test panel and is not a measurement of sagging performance.

New York Paint ClubNYPC's leveling testerIt is a U-shaped coating machine. There is a shallow gap on one side, and a set of five pairs of equally spaced narrow V-shaped grooves are cut in the gap, with groove depths of 10, 20, 40, 80, and 160 mils, respectively. The tester can apply a 4-inch wide drag film at once, with a 5-inch length at both ends of the tester.

Drag and drop operations are carried out according to the usual procedure on the test board or cardboard. It produces 5 pairs of inverted V-shaped coating marks, with very thin coatings (less than 0.5mil) between them. The drag test needs to be kept flat on a horizontal board until the coating is dry before evaluation. The grading of leveling is based on the distance between which two coatings converge and to what extent they converge.

standard：

New York Coatings Technology Association No. 44, Vol.32

compilation No. 430, p. 1435

ordering information TECHNICAL INDEX

model name Shipping weight net weight size

0812 NYPC leveling tester 450g(1lbs) 340g(12oz.) 127×32×44.5mm(5×1.25×1.75in)

Basic configuration:

Leveling tester、carrying case；