diX makes a Poly-para-Xylylene coating film formed by the chemical vapor deposition (CVD) process.
The coating film is completely pinhole free and the film thickness can be uniformly controlled in the micron range to conform to any irregular shape, whether it has a sharp edge or a complicated internal surface without any thermal stress.
     
 
Key Features
  
     
 
Varieties of diX
  
     
Properties of diX
  
     
 
DACS
  
     
 
Contact
  
     
 
JAPANESE
  
diX C
diX D
diX N
Test Method
(ASTM)
Epoxies
Urethanes
Density
g/cm3
1.31
1.42
1.11
D1505
1.1-1.4
1.1-2.5
Refractive Index
1.65
1.65
1.66
D542
1.55-1.61
1.50-1.60
Tensile Modulus
GPa
3.2
5.6
2.4
D882
Tensile Strength
psi(lb/in2)
9,800
11,860
6,800
D882
4,000-13,000
1,000-10,000
MPa
67.6
81.8
46.9
D882
28-90
7-69
Yield Strength
psi(lb/in2)
9,500
-
7,250
D882
MPa
65.5
-
50.0
D882
Elongation to Break
%
270
9
30
D882
3-6
100-1,000
Yield Elongation
%
3.6
-
2.5
D882
Rockwell Hardness
R80
R85
D785
M80-M110
-
Pencil Hardness
2H
2H
3B
JIS K5600-5-4
Coefficient of
Friction		 Static
0.29
0.44
0.25
D1894
Dynamic
0.29
0.39
0.25
D1894
Melting Point
291
354
420
D3417
-
<170
Linear Coefficient of Expansion
10-6/
30.1
29.0
69.0
-
45-65
100-200
Dielectric Constant 60Hz
3.10
2.90
2.65
D150
3.5-5.0
5.3-7.8
1KHz
2.83
2.87
2.65
D150
3.5-4.5
5.4-7.6
1MHz
2.87
2.83
2.67
D150
3.3-4.0
4.2-5.2
1GHz
2.81
-
Dissipation Factor 60Hz
0.027
0.0066
0.0002
D150
0.002-0.01
0.015-0.05
1KHz
0.015
0.0047
0.0002
D150
0.002-0.02
0.04-0.06
1MHz
0.014
0.0024
0.0009
D150
0.03-0.05
0.05-0.07
1GHz
0.001
-
Dielectric Strength
V/mil
6,900
6,730
7,000
D149
4,500-5,600
5,000-5,600
Volume Resistivity
23,50%RH
cm
6.9x1016
3.1x1016
1.4x1017
D257
1012-1017
1011-1015
Surface Resistivity
23,50%RH
2.2x1015
3.0x1016
1.0x1013
D257
1013
1014
Water Absorption 24hr
%
<0.1
<0.1
<0.1
D570
<0.1-0.2
<0.1-1.5
Moisture Vapor Transmission
24hr,37,90%RH
gmil
/100in2
0.016
0.127
1.6
F1249
1.8-2.4
2.4-8.7
Oxygen Transmission
24hr,1atm,23
cm3mil
/100in2
5.38
2.44
206
D3985
5-10
200
* 1mil=1/1,000inch=25.4mReference: Modern Plastics Encyclopedia, 1968, Vol.45 / No.1A
The figures shown above are typical values only.

Swelling (Thickness change, %) on immersion in various chemicals for 10 - 16m thickness film. (Typical values only)
 
Immersing condition
diX C
diX D
diX N
Typical Values
Epoxies
Urethanes
Hydrochloric acid
10 %
75 / 120min
A
-0.28
A
+0.21
A
+0.08
BC
CD
Sulfuric acid 10 %
75 / 120min
A
-0.28
A
+0.14
A
+0.07
AB
CD
Nitric acid 10 %
75 / 120min
A
-0.28
A
+0.21
A
+0.15
D
D
Hydrofluoric acid 10 %
50 / 120min
A
+0.09
A
+0.27
A
+0.37
B
D
NaOH solution 10 %
75 / 120min
A
-0.28
A
+0.14
A
+0.15
AB
BC
NH4OH solution 10 %
75 / 120min
A
-0.38
A
+0.22
A
+0.15
A
BC
Hydrogen peroxide water (H2O2)
50 / 120min
A
0.00
A
+0.17
A
0.00
CD
CD
n-Octane
75 / 120min
A
+0.28
A
+0.39
A
+0.29
C
B
Toluene
75 / 120min
A
+1.32
B
+3.69
A
+0.30
C
C
Monochlorobenzene
75 / 120min
A
+1.04
B
+3.47
A
+0.37
D
Pyridine
75 / 120min
A
+0.28
B
+3.41
A
+0.29
D
C
2-Propanol (IPA)
50 / 120min
A
0.00
A
0.00
A
+0.07
C
B
Acetone
50 / 120min
A
-0.09
A
+2.38
A
+0.15
C D
C
(%)(%)(%)
A: Excellent resistanceB: Good resistanceC: Possible to use with difficultyD: No good to use
Typical Values of Epoxies and Urethanes are not tested by same condition but reference only.

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