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| Home > Manufactured Products > Adhesives >NTT Adhesives |
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Features
- These sealants provide flexibility to prevent
stresses on fibers during curing or heat-cycling, and
have small moisture permeability at elevated
temperatures.
|
Calculated Humidity inside the
sealed Case with sealants |
Main properties of Sealants for
optical devices
(Moisture-proof elastic sealants S3903, S3903-5,
OS-39) |
Name (Main Components) |
S3903
(Modified Epoxy)
|
S3903-5
(Modified Epoxy)
|
OS-39
(Modified Epoxy)
|
Conditions |
Paste
|
Black paste
|
Black paste
|
Curing |
Mixture ratio (A:B)
Weight ratio
|
100:200
|
100:280
|
100:230
|
Mixture ratio (A:B)
Volume ratio
|
100:135
|
100:170
|
100 :140
|
Pot life (min.)
|
20
|
10~20
|
20~30
|
Properties after curing |
Moisture permeability
coefficients (cc cm/cmHgcm2s)
[75 ]
|
4~5 x 
|
4~5 x
|
6~7 x
|
Glass Transition
Temperature ()
|
-63
|
-57
|
-62
|
Hardness (Shore D)
[25]
|
36
|
39
|
26
|
Adhesion Strength
(kgf/cm2)
|
SUS
|
50
|
121
|
58
|
Glass
|
53
|
89
|
54
|
(Note)
This property data is a measured value on samples instead of
the guaranteed value. |
Main properties of Sealants for
optical devices
(High humidity-resistant sealants 14SI, 14SI-3,
OS-14) |
Name (Main Components) |
14SI
(Epoxy)
|
14SI-3
(Epoxy)
|
OS-14
(Epoxy)
|
Conditions |
Paste
|
Paste
|
Paste
|
Curing |
Mixture ratio (A:B) Weight
ratio |
110:20
|
210:20
|
180:20
|
Mixture ratio (A:B) Volume
ratio |
100:26
|
100:15
|
100:18
|
Pot life (min.) |
20~30
|
10~20
|
10~20
|
Properties after curing |
Moisture permeability coefficients
(cccm/cmHgcm2s)
[75] |
0.8 x
|
0.3 x
|
0.8 x
|
Glass Transition Temperature Mixture
ratio (A:B) () |
61
|
64
|
66
|
Hardness (Shore D) [25] |
58
|
82
|
60
|
Adhesion Strength
(kgf/cm2) |
SUS |
>200
|
>200
|
>200
|
Glass |
>200
|
>200
|
>200
|
(Note)
This property data is a measured value on samples instead of
the guaranteed value. |
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