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Help CenterSolventless Impregnating Resin, Electrical Insulating Varnish, Motor Varnish
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Resin R-1140 Thermal class H (180C)
Solventless UL approved E227128
R-1140 Fast cure solventless impregnating resin is made from heat resistant unsaturated polyester resin, epoxy resin and styrene. It has gained UL certification (E227128) and UL electrical insulation system certification (E242776)
Features
fast curing, stable storage, high mechanical strength and excellent insulation performance
Applications/Use
It is widely used and suitable for impregnation of many types of motors and apparatus coils of class B, F and H. It is recommended for Y2 series motors, water pump motor, traction motor, large transformer and dry type transformer. It can be used by common immersion, continuous immersion and VPI method of application.
Technical Data
Properties |
Unit |
Standard Values |
|
appearance |
|
Brown-yellow liquid, uniform without mechanical impurities |
|
Viscosity, 23°C, Tu-4# cup |
seconds |
20-50 |
|
Gel time 130±2°C |
minutes |
2-8 |
|
|
Volatile matter in curing, l0g specimen in aluminum vessel of 45×45×25mm 130°C, 3 h |
% |
≤ 20 |
|
|
Stability of resin in an open vessel 50±2°C, 96 h |
increasing multiple of viscosity |
≤ 4 |
|
|
Curing in thick layer 130°C, 4h |
|
Not worse than S1, U1, I4.2 |
|
|
Reaction of resin on enamel wire |
Hardness |
≥ 2H |
|
|
Bond strength Helical coil method At room temperature |
N |
≥60 |
|
Dielectric strength |
At room temperature |
MV/m |
≥20 |
Volume resistivity |
At room temperature |
Ω.m |
≥ 1×1012 |
|
After immersion in water, 24h |
≥ 1×1011 |
||
At 155±2°C |
≥ 1×108 |
||
At 180±2°C |
≥ 1×107 |
||
17KG/drum or 180KG/drum.
This product can be stored at least 6 months in dry and ventilated room at about 25℃.
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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