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APG

technic

al r

efer

enc

e

T

15

“Providing tailored solutions for measurement applications.â€

Automation Products Group, Inc.

1025 West 1700 North 

Tel. 1/888/525-7300

Logan, UT 84321  USA 

Fax 1/435/753-7490

w w w . a p g s e n s o r s . c o m

s a l e s @ a p g s e n s o r s . c o m

â–   

Dielectric Constants

Medium  

Dielectric Constant

ABS pellet 

1.5-2.5

Acetone 

19.5-20.0

Acrylic resin 

2.7-6.0

Air 

1.0

Alcohol, industrial 

16.0-31.0

Aluminum powder 

1.6-1.8

Aluminum sulfate 

6.0

Ammonia 

15.0-25.0

Aniline 

6.9

Aqueous solutions 

50.0-80.0

Asphalt 

2.5-3.2

Bakelite 

3.6

Benzene, liquid 

2.3

Cable sealing compound  2.5
Calcium carbonate 

1.8-2.0

Calcium oxide 

11.8

Calcium sulfate 

5.6

Carbon dioxide 

1.0-1.6

Carbon tetrachloride 

2.2

Celluloid 

3.0

Cement powder 

1.5-4.0

Cereal 

3.0-5.0

Chlorine liquid 

2.0

Coal powder 

1.2-1.8

Coffee powder 

2.4-2.6

Coke 

1.1-2.2

Corn, refuse 

2.3-2.6

Ebonite 

2.7-2.9

Epoxy resin 

2.5-6.0

Ethyl alcohol 

24.0

Ethylene glycol 

38.7

Flour 

1.5-3.0

Flyash 

1.5-1.7

Freon R22 & 502 (liquid)  6.11

Dielectric Constants

Medium  

Dielectric Constant

Gasoline 

2.2

Glass, raw material 

2.0-10.0

Glycerine 

47.0

Grain 

3.0-8.0

Granulated sugar 

1.5-2.2

Hard paper 

4.5

Heavy oil 

2.6-3.0

Hexane, liquid 

5.8-6.3

Hydrochloric acid 

4.0-12.0

Iron oxide 

14.2

Liquid nitrogen 

1.4

Kerosene 

2.8

Marble 

8.0-8.5

Melamine resin 

4.7-10.2

Mica 

5.7-6.7

Milk powder 

3.5-4.0

Mineral oil 

2.1

Nitrobenzene 

36.0

Nylon 

4.0-5.0

Oil saturated paper 

4.0

Paint 

5.0-8.0

Paraffin 

1.9-2.5

Paper 

1.6-2.6

PE pellet 

1.5

Perspex 

3.2-3.5

Petroleum 

2.0-2.22

Phenol resin 

4.0-12.0

Polyacetal 

3.6-3.7

Polyamide 

5.0

Polyester resin 

2.8-8.1

Polystyrene 

3.0

Polyvinyl chloride resin  2.8-3.1
Porcelain 

4.4-7.0

Potassium chloride 

4.6

Medium  

Dielectric Constant

PP pellet 

1.5-1.8

Press board 

2.0-5.0

PVC powder 

1.4

Quartz glass 

3.7

Rice 

3.0-8.0

Rubber, raw 

2.1-35

Salt 

6.0

Sand 

3.0-5.0

Shellac 

2.5-4.7

Shell lime 

1.2

Silicon varnish 

2.8-3.3

Soap powder 

1.2-1.5

Sodium sulfite 

5.0

Soybean oil 

2.9-3.5

Starch 

2.0-5.0

Styrene resin 

2.3-3.4

Sugar 

3.0

Sulfuric acid 

84.0

Sulphur 

3.4

Teflon 

2.0

Toluene liquid 

2.0-2.4

Transformer oil 

2.2

Turpentine oil 

2.2

Urea resin 

5.0-8.0

Urethane 

6.5-7.1

Vaseline 

2.2-7.0

Vegetable oil 

2.5-3.5

Water 

48.0-80.0

Wheat powder 

2.5-3.0

Wood, dry 

2.0-7.0

Wood, wet 

10.0-30.0

Xylene liquid 

2.2-2.6