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EFI Polymers has developed a suite of epoxy encapsulating and potting products specifically for the motor manufacturing industry. Currently, our material is being used by motor manufacturers all over the world to encapsulate thousands of stators every single day. Our materials for Motors/Coils/Power Supply are formulated with the following properties:
- Underwriters Laboratories UL 1446 recognition: EFI has numerous systems to select from when customers are looking for a potting compound component of a UL 1446 recognized insulation system for use up to 180C (Class H) UL File # E 210549.
- Low viscosity: allows our systems to penetrate and release air from even the tightest coil and slot windings, enabling many of our customers to eliminate varnishing and VPI practices from their manufacturing process.
- Excellent Thermal Regulation: our materials have been formulated to withstand a wide range of temperatures, from Arctic Duty Motors to submersible Motors.
- Outstanding Thermal Conductivity: our filled epoxy materials excel at transporting and dissipating heat from motors and other coil windings, a reduction in core temperature is always achieved.
- Process friendly: our materials are designed to have mix ratios, viscosities, gel times that are friendly to process and automate.
System ID | Comments | UL Designation | Temperature Class |
Mix Ratio by Volume |
Mixed Viscosity Temperature |
Mixed Viscosity at 77F |
Mixed Density Lb/Gal |
Mixed Color | Gel Time Mass |
Gel Time | Hardness Shore Type |
Hardness Value |
Room Temperature Cure, Y/N |
Volume Resistivity | Insulation Resistivity | Surface Resistivity | Alternate Mixed Viscosity Temperature |
Alternate Mixed Viscosity |
Alternate Gel Time Mass |
Alternate Gel Time Temperature |
Alternate Gel Time |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
20290/50013 | excellent thermal conductivity and resistance to thermal shock, long work life |
11T206-20290/7H013-50013 |
180 |
100:21.7 |
77 |
2000 |
13.7 |
Black |
200 |
300 |
D |
85 |
Yes |
2.8x10E15 |
200 |
120 |
45 |
||||
20290/50021 | excellent thermal conducitivity and resistance to shock |
11T206-20290/7H013-50021 |
180 |
100:21.7 |
77 |
13.7 |
Black |
200 |
70 |
D |
85 |
Yes |
|||||||||
20271/50013 | low shrinkage and exotherm, excellent air release |
11T206-20271/7H013-50013 |
180 |
100:23.3 |
77 |
5000 |
16.4 |
Black |
200 |
300 |
D |
85 |
Yes |
3.5x10E15 |
120 |
1000 |
200 |
120 |
45 |
||
20217/50019 | flexible, excellent coil penetration and air release, good thermal shock resistance |
100:83.3 |
77 |
9000 |
11 |
Black |
30 |
120 |
D |
72-60 |
No |
150 |
|||||||||
20206/50021 | excellent coil penetration and thermal shock resistance, moderate work life |
11T206-20206/7H013-50021 |
180 |
100:27 |
77 |
5500 |
12.2 |
Black |
200 |
120 |
D |
85 |
Yes |
2.8x10E15 |
120 |
1000 |
200 |
120 |
30 |
||
20206/50013 | excellent coil penetration and thermal shock resistance |
11T206-20206/7H013-50013 |
180 |
100:27 |
77 |
5500 |
12.2 |
Black |
200 |
300 |
D |
85 |
Yes |
2.8X10E15 |
120 |
1000 |
200 |
120 |
42 |
||
20203/50201 | most widely used potting material, industry workhorse |
11G203-20203/7H015-50201 |
180 |
100:100 |
77 |
11000 |
13.5 |
Black |
200 |
32 |
D |
70 |
Yes |
5.53E+14 |
2.24E+14 |
1.57E+16 |
140 |
3500 |
|||
20203/50015 | low-cost, general use, easy to mix, excellent air release |
11G203-20203/7H015-50015 |
180 |
100:50 |
77 |
15000 |
11.7 |
Black |
100 |
160 |
D |
85 |
Yes |
1.5x10E14 |
|||||||
20203/50013 | all purpose, general use, long work life. |
11G203-20203/7H013-50013 |
180 |
100:23.5 |
77 |
1200 |
12.5 |
Black |
400 |
300 |
D |
75 |
Yes |
1.6c10E14 |
140 |
365 |
|||||
20202/50002 | color-coded, easy to mix, highly filled |
11T202-20202/7H002-50002 |
180 |
77 |
5500 |
13.0 |
Blue |
100 |
15 |
D |
90 |
Yes |
1.8x10E14 |
120 |
1300 |
||||||
20003/50013 | extended work life, transparent, plasticizer free |
11T206-20003/7H013-50013 |
180 |
100:40 |
77 |
600 |
9.2 |
Clear |
200 |
360 |
D |
85 |
Yes |
5.0x10E15 |
120 |
120 |
40 |
120 |
140 |
System ID | Comments | UL Designation | Temperature Class |
Mix Ratio by Volume |
Mixed Viscosity Temperature |
Mixed Viscosity at 77F |
Mixed Density Lb/Gal |
---|---|---|---|---|---|---|---|
20290/50013 | excellent thermal conductivity and resistance to thermal shock, long work life |
11T206-20290/7H013-50013 |
180 |
100:21.7 |
77 |
2000 |
13.7 |
20290/50021 | excellent thermal conducitivity and resistance to shock |
11T206-20290/7H013-50021 |
180 |
100:21.7 |
77 |
13.7 |
|
20271/50013 | low shrinkage and exotherm, excellent air release |
11T206-20271/7H013-50013 |
180 |
100:23.3 |
77 |
5000 |
16.4 |
20217/50019 | flexible, excellent coil penetration and air release, good thermal shock resistance |
100:83.3 |
77 |
9000 |
11 |
||
20206/50021 | excellent coil penetration and thermal shock resistance, moderate work life |
11T206-20206/7H013-50021 |
180 |
100:27 |
77 |
5500 |
12.2 |
20206/50013 | excellent coil penetration and thermal shock resistance |
11T206-20206/7H013-50013 |
180 |
100:27 |
77 |
5500 |
12.2 |
20203/50201 | most widely used potting material, industry workhorse |
11G203-20203/7H015-50201 |
180 |
100:100 |
77 |
11000 |
13.5 |
20203/50015 | low-cost, general use, easy to mix, excellent air release |
11G203-20203/7H015-50015 |
180 |
100:50 |
77 |
15000 |
11.7 |
20203/50013 | all purpose, general use, long work life. |
11G203-20203/7H013-50013 |
180 |
100:23.5 |
77 |
1200 |
12.5 |
20202/50002 | color-coded, easy to mix, highly filled |
11T202-20202/7H002-50002 |
180 |
77 |
5500 |
13.0 |
|
20003/50013 | extended work life, transparent, plasticizer free |
11T206-20003/7H013-50013 |
180 |
100:40 |
77 |
600 |
9.2 |