Epoxy potting sealants WOC-87-II(A)/G-8402(B)
■ Description
Two-component encapsulating system based on epoxy resin, formed from auxiliaries including epoxy resin, diluent, compound anhydride.
Excellent of the surface gloss of the cured epoxy resin, excellentelectrical properties and have flame retardant property.
■ Applications
Encapsulation of electrical components of Capacitor, Inductor, Igniter, Transformer, trigger and Filter.
■ General properties
|
Test Item |
Test Mothed/Conditions |
WOC-87-II A |
G-8402 B |
|
Appearance |
Visualization |
All color viscous liquid |
Slight yellow transparent liquid |
|
Density |
25º C g/m³ |
|
|
|
Viscosity |
40º C mpa.s |
1000 - 5000 |
15 - 40 |
|
Viscosity(blended) |
40º C mpa.s |
300±200 |
|
|
Storage validity |
Sealed and storage Temp.below 25º C |
6 months |
6 months |
|
Ratio of blend |
Weight/Weight |
100 |
30 |
|
Curing condition |
º C/hrs |
75 º C/1h or 90 º C/2.5h |
|
■ Characteristics after curing
|
Item |
Unit/Conditions |
WOC-87-II A/G-8402 B |
|
Hardness |
20º C Shore-D |
＞80 |
|
Insulation Strength |
25º C kv/mm |
≥18 |
|
Bending Strength |
Kg/cm2 |
≥81 |
|
Heat/cold Shock Resistance |
-20 to 120º C |
Cycle times: more than 5 |
|
Flame Retardancy |
UL 94 |
V0 or V1 |
|
Surface Resistance |
25º C Ω.cm |
＞1014 |
|
Volume Resistance |
25º C Ω.cm |
＞1015 |
|
Curing Shrinkage Rate |
% |
＜0.8 |
|
Glass transition temperature |
Tgº C |
≥85 |
■ Storage, Packaging
- Sealed and storage Temperature below 25º C after each operation
- Please see the term of validity in each packages
- Packages: A component is 25kg, B component is 10kg or 25kg
- The storage validity is 6 months, a little precipitate shall be occurred provided high temperature. Please stir the material before using.
Note: The above data was tested under the conditions of 70% humidity and 25º C Temperature, This is for your reference only.
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