Mastersizer 2000 sensitivity and reproducibility data for powder coatings

The figure below shows the sensitivity of the Mastersizer 2000 to the presence of coarse particles within a powder coating sample. Note that the seed material overlapped with the main distribution.

Powder coating seeding

The data below demonstrates the reproducibility achieved for a powder coating sample using the MS2000 with a Scirocco dispersion unit.

Measurement		d(0.1)		d(0.5)		d(0.9)
1		8.20		17.03		32.93
2		8.14		16.95		32.81
3		8.33		17.26		33.33
4		8.17		17.06		33.00
5		8.10		16.92		32.76
6		8.27		17.11		33.03
7		8.08		16.94		32.85
8		7.99		16.81		32.68
Average:		8.16		17.01		32.92
Variation (%)		1.34		0.82		0.61

The result overplot is shown below.

Powder coating reproducibility