Performance Parameter

Parylene Compared With Other Coatings

Parylene Nano Materials of Our Company

Other Materials

Record Data With

ASTM Test Method

Parylene

AF4

Parylene 

C

Parylene

D

Parylene

F

Parylene 

N

Test Method 

(ASTM)

ER

(Epoxy Resin)

SR

(Silicone Resin)

UR

(PUR Polyurethane)

AR  (polya Crylic Ester)

UV  (polya Crylic Ester)

Dielectric Strength

DC(V/mil)

5400

5600

5500

5500

7000

D149

900-1000

1100-2000

1400-3000

1200-2000

Volume Resistivity

Ω.Cm 23*C 50%RH

2×1017

6-8×1016

1.2×1016

2×1017

1.4X1017

D257

1012-17

1015-16

1011-15

1013-14

Surface Resistance Ω

1015

1014

1016

5×1017

1013

D257

1013

1013

-

1014

Dielectric Constant

60Hz

2.21

3.15

2.84

2.25

2.65

D150

3.5-5.0

2.7-3.1

5.7-7.8

3-4

lKHz

2.20

3.10

2.82

2.10

2.65

D150

3.S-4.5

2.6-2.7

5.4-7.6

2.5-5

1MHz

2.17

2.95

2.80

2.16

2.65

D150

3.3-4.0

2.6-2.7

4.2-5.2

3-4

Dissiption Loss

60Hz

<0.0002

0.02

0.004

0.0002

0.0002

D150

0.002-0.01

0.001-0.007

0.015-0.05

0.2-0.4

lKHz

0.0020

0.019

0.003

0.0020

0.0002

D150

0.002-0.02

0.001-0.005

0.04-0.06

0.02-0.02

1MHz

0.0010

0.013

0.002

0.0010

0.0006

D150

0.03-0.05

0.001-0.002

0.05-0.07

0.035-0.056

1GHz

-

0.0043

-

-

-

-

-

-

-

-

10GHz

-

0.0032

-

-

-

-

-

-

-

-

Young Modululus Mpa

3000

3200

2800

-

2400

-

2400

720

80-800

480

Tensile Strength Mpa

55

70

75

52

45

D882

28-91

5.6-7

1.13-70

32-77

Breaking Elongation %

200

200

10

200

20-250

D882

3-6

100

100-1000

3-85

Hygroscopicity %24 24h

<0.01

<0.1

<0.1

<0.009

<0.1

D570

0.08-0.15

0.12

(Seven Days)

0.02-0.45

-

Hardness

R122

R80

R80

-

R85

D785

M80-110

40-45 HS

10A-25DHS

H-2H

Pencil Hardness

-

2H

-

-

3B

JISK

5600-5-4

-

-

-

 

Dilatation Coefficient

Static

0.15

0.29

0.33

0.14

0.25

D1894

-

1.0

-

 

Dynamic

0.13

0.29

0.31

0.13

0.25

D1894

-

1.0

-

 

Melting Point °C

>500

290

380

>460

420

D3417

Solidify

Solidify

170 or Solidify

 

Used In Air °C

-200°~450°

-200°~120°

-200°~140°

-200°~280°

-200°~120°

-

-64°~199°

-45°~110°

-59°~137°

 

Liner Expansion Coefficient 25°C 10-5/°C

4.5

3.5

3-8

3.6

6.9

-

4.565

25-30

10-20

0.5-15

Thermal Conductivity 10-4 Cal/cm.s/C

0.096

2.0

-

0.096

3.0

-

4-5

3.5-7.5

5.0

36

Specific Heat 20°C

1.04

0.17

-

-

0.2

-

0.25

-

0.42

-

Water Vapor Permeability 37°C 90% RH g.mil/100in2.d

0.32

0.21

13.5

0.25-0.36

1.5

-

6.6

-220

20.2

27.8

 

Protective Performance of Parylene Nano

Gas Permeability cm3-mil/100

Parylene C

Parylene D

Parylene N

Nitrogen

0.95

4.5

7.7

Oxygen

7.1

32

30

Carbon Dioxide

7.7

13

214

Hydrogen Sulfide

13

1.45

795

Chlorine Gas

11

4.75

1.890

Sulfur Dioxide

0.35

0.55

74

Water Vapor Transmission 2-24 Hours With Atmospheric Pressure at 23℃

0.14

0.25

1.5

Thermal Performance

Melting Points(°C)

290

380

410

Linear Expansion Coefficient

(10-5/°C)

3.5

NA

6.9

Thermal Conductivity

(cm2°C /cm)

2.0

NA

3.0

Physical & Mechanical Properties

Tensile Strength PSI

10000

1100

6500

Tensile Modulus MPA

69

76

45

Yield Strength PSI

8000

9000

6300

Yield Elongation MPA 

3200

2800

2400

Elongation at Break%

200

10

40

Density g/cm3

1.289

1.418

1.110

Coeffcient of Friction: Static)

0.29

0.33

0.25

Coeffcient of Friction: Dynamic

0.29

0.31

0.25

Water Absorption% (24 hours) 

0.06

NA

0.01

Refractive Index Nd23

1.639

1.669

1.661

Solvent Resistance Immerse The Film With 0.5-1.5 mil in 0.5-1.5 mil in Various Solvents at Room Temperature

Isopropyl Alcohol

0.1

0.1

0.3

Isooctane

0.4

0.3

0.2

Pyridine

0.5

0.5

0.2

Mixed Xylenes

2.3

1.1

1.4

Trichlorethylene

0.8

0.8

0.5

Chlorobenzene

1.5

1.5

1.1

Dichlorobenzene

3.0

1.8

0.2

Trichlorotrifluoroethane

0.2

0.2

0.2

Acetone

0.9

0.4

0.3

A-Pentanedione

1.2

1.4

0.6

Deionized Water

0

0

0

 

Cyclic Damp Heat Test Of Coated Circuit Board

Insulation Resistance (Ohm) MIL-STD-202 Method 302

Parylene C
Thickness (in)

Initial Measurement

23℃ 50% RH

Precycling 23 ℃ 

90%RH

Cycle 3 Step 5

65℃ 90%RH 

Cycle 7 Step 5

65℃ 90%RH 

Cycle 10 Step 5

65℃ 90%RH

Cycle 10 Step 7

65℃ 90%RH

0.002

2.0×1014

1.8×1013

2.3×1012

2.5×1011

1.4×1011

7.5×1012

0.0015

5.0×1014

2.4×1013

8.6×1011

1.9×1011

1.1×1011

5.2×1012

0.001

2.0×1014

9.2×1012

8.1×1011

3.4×1011

1.3×1011

6.3×1012

0.0005

5.0×1014

2.3×1013

4.1×1012

2.4×1011

1.1×1011

4.7×1012

0.0003

5.0×1014

2.7×1013

4.4×1012

9.0×1010

4.7×1010

2.9×1012

0.0001

5.0×1014

3.2×1010

1.3×1011

1.1×1011

6.4×1010

2.3×1012

 

Gas And Moisture Isolation

Gas Permeablity at 25℃  {cm3(STP).mil} (100in2/d.atm)

90%RH37℃(Water Vapor)
g.mil/100in2.d

 

CO2

CL2

H2

H2S

N2

O2

SO2

 

Parylene C

7.7

0.35

110

13

1.0

7.2

11

0.21

Parylene N

214

74

540

795

7.7

39

1890

1.50

Epoxy Resin

8

-

110

-

4

5-10

-

6.6

Silicone Resin

300000

-

45000

-

-

50000

-

220

Polyurethane

3000

-

-

-

80

200

-

20.2

Polypropylene
Resin

1433

-

-

-

152

716

-

27.8

 

Acid & Alkali Corrosion-The Thickness Of The Film With 0.5-1.5 mil Was Varied At Room Temperature After 90 Minutes Of Immersion In Various Reagents (%) (Infrared Measurement)

Reagent Varieties

Concentration  (%)

Praylene C (%)

Praylene D (%)

Praylene N (%)

Hydrochloric Acid

10

0.0

0.1

0

Concentrated Hydrochloric Acid

37

0

0.5

0.2

Sulfuric Acid

10

0.3

0.2

0.1

Concentrated Sulfuric Acid

95-98

0.4

0.8

0.2

Nitric Acid

10

0.1

0.2

0.1

Concentrated Nitric Acid

71

0.2

0.5

0.2

Butyric Acid

10

0.1

0.1

0.1

Concentrated Butyric Acid

74

0

0.2

0.3

Strong Alkali (NaOH)

10

0

0.1

0.1

Weak Alkalis (NH4OH)

10

0.2

0.1

0.3