Device for predicting amount of coarse flakes in coating compositions by wet color measurement

[0041] Table 1 below lists a sample of the coating composition, which includes the same as the 780 supplied by DuPont Company of Wilmington (DuPont Company of Wilmington). TM A variety of mixtures of polymer-mixed coarse flakes and fine flakes. The coarse flakes are Sparkle Silver 3641 flakes with an average size of 31 micrometers, which are produced by Silberline of Tamaqua, Pennsylvania (Pennsylvania). The thin flakes were aluminum paste 33313 flakes with an average size of 15 microns, which were supplied by Eckart of Louisville, Kentucky. The layers of these samples were applied to the substrate 2 of the device 1, and the MA-68 colorimeter 26 (MA-Rite) supplied by X-Rite of Grand Rapids, Michigan was used. 68color instrument) to measure the dynamic color of the layer:

[0042] Table 1

[0043]

Sample 1

Sample 2

Sample 3

Sample 4

Sample 5

Weight of thin flakes

100

80

60

30

0

Weight of thick slices

0

20

40

70

100

Weight of polymer

900

900

900

900

900

total weight