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Help CenterHeat Curing Epoxy Potting Resin, Encapsulating Resin, Electronic Materials
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Brief Introduction
R-381-1 epoxy potting resin is made from epoxy resin, hardener and filler presented in two-component form. R-381-1 is heating type product and its heat-resistant grade is F. It has gained UL certification (E229550) and UL insulation system certification (E242776).
Features
Good manufacturability and insulation property, low shrinkage, shining appearance of condensate and excellent crack resistance.
Application/Use
Embedding, casting and potting for electronic components, motor and apparatus coils, such as small transformer and instrument transformer coils, capacitor, ignition coils of automobile etc.
R-381-1 cured resin is grey, and we can provide red or other colors according to customers’ needs.
Qualification (as the Q/R 101-2010 company standard)
No. |
Test Item |
Test Method |
Unit |
Value |
|
1 |
Appearance |
Test Tube |
- |
Component A is grey viscous liquid, component B is yellow liquid |
|
2 |
Viscosity |
Part A |
Rotary viscosimeter, 40°C |
mPa.s |
6000-10000 |
Part B |
20±10 |
||||
Mix |
1000-2000 |
||||
3 |
Density |
Part A |
Water=1 |
- |
1.60±0.05 |
Part B |
1.20±0.05 |
||||
Mix |
1.55 |
||||
4 |
Gel time |
23±2°C |
min |
≤10 |
|
5 |
Hardness |
- |
Shore D |
≥60 |
|
6 |
Volume Resistivity |
At room temperature |
Ω·m |
≥1×1013 |
|
After immersion in water |
≥1×1012 |
||||
7 |
Dielectric strength |
At room temperature |
MV/m |
≥20 |
|
8 |
Pot life |
23±2°C, no gel |
h |
≥1 |
|
9 |
Fire resistance |
- |
- |
UL94 V-0 |
|
Established in 1992, Rota Group is one of the most professional manufacturers of impregnating varnish, mica tape, potting resin and embedding resin in China. Most products have been approved by ISO9001, 14000, UL, TUV, FDA, RoHS and REACH, widely used in high-voltage motors, wires and cables, household appliances, industrial pumps, and metallurgy equipments etc. We win the trust of the majority of well-known manufactures, like BOSCH, BLACK & DECKER, Fujitsu, Shibaura, REGAL, Siemens, EPCOS, N.P.V. and so on.
Professional quality, creating value for customers. Rota Group lead in the aspects of industry scale, product technology and innovation capacity, we will provide quality products and professional services for you. Welcome you!
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