Table 6. ESD Voltage Measurement Data for Plastic Bead Media

Conformal Coating Type

Sample ID

Microblaster Parameters

ESD Surface Voltage

(Volts)

Electrostatic Field

(Volts/Inch)

Temp. (°C)

Relative Humidity (%)

Media Flow Rate (1-10)

Gas Pressure (PSI)

 

Site 1

Site 2

Site 3

Site 4

Site 5

(w/o ESD control)

Urethane

U7

22

49

4

60

Min.

Max.

Avg.

-31

-36

-33

-20

-33

-26

-178

-200

-189

-52

-56

-54

-3378

-3416

-3397

10

176

-

Urethane

U8

22

49

4

60

Min.

Max.

Avg.

-2

-12

-7

-26

-32

-29

-218

-220

-219

-340

-358

-349

-2752

-2760

-2756

20

288

-

Parylene

P7

22

49

4

60

Min.

Max.

Avg.

16

28

22

-76

-88

-82

-220

-233

-226

-480

-510

-495

-2832

-2899

-2865

8

56

-

Parylene

P8

22

49

4

60

Min.

Max.

Avg.

21

35

28

-6

-11

-8

-250

-260

-255

-509

-540

-524

-2800

-3005

-2902

9

56

-

 

 

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