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SRE 16

for varnishing of electrical steel

 

 

  Mass content of solids, %

67 ± 2

  Relative viscosity, с

45 - 65

  Drying time of varnish coating at (200 ± 5)°С to grade 3, minutes, not exceeding

15

  Thermal elasticity of varnish coating at (200 ± 5)°С, hours, at least

50

  Hardness of varnish coating by pendulum device ME-3 at (20 ± 5)°С, conv. units., at least

0,5

  Hardness of varnish coating by pendulum device ME-3 at (180 ± 2)°С, conv. units., at least

0,2

  Optical density, at wave length 400nm, not exceeding

0,6

  Dielectric properties

Test conditions

 

R,М(15-35°C)
45-75%

R,M(180°C)
<20%

24h(23°C)93%
M(15-35°C)
45-75%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV / m, at least

70

35

40

 

 

SRE 17

for manufacture of magnet wire with glass fiber insulation and heat-resistant wires and cables with protective fiberglass shell.

 

 

 Mass content of solids, %

60 ± 2

 Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

30 - 60

 Drying time of varnish coating to grade 3 at 200°С, minutes, not exceeding

15

  Mass content of hydrogen bonded to silicon, %, not exceeding

0,0018

  Thermal elasticity of varnish coating at temperature 200°С, hours, at least

50

  Hardness of varnish coating by pendulum device ME-3 at  t=20°С, conv. units., at least

0,6

  Hardness of varnish coating by pendulum device ME-3 at  t=180°С, conv. units., at least

0,2

  Optical density, not exceeding

0,5

  Dielectric properties

Test conditions

 

М(15-35°C) 45-75%

M(200°C) <20%

24h(23°C) 93%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV / m, at least

75

35

40

 

 

 

SRE 18

 

Resin SRE 18 is used to impregnate the windings of electric machines, dry-type transformers with insulation thermal class "H" to impregnate nodes of electrical machines and apparatus operating in conditions of high humidity.

 


  Mass content of solids, %

66 ± 2

  Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

45 - 65

  Drying time of varnish coating at (200 ± 5)°С to grade 3, minutes, not exceeding

15

  Thermal elasticity of varnish coating at (200 ± 3)°С, hours, at least

50

  Optical density, not exceeding

1,0

  Cementing ability of varnish coating at 20°С, Н, at least

294

  Dielectric properties

Test conditions

 

R;М(15-35°C) 45-75%

R;M(180°C) <20%

24h(23°C) 93%;М(15-35°C) 45-75%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1013

1,0×1010

1,0×1012

  Electric strength MV/m, at least

75

50

50

 

 

SRE 21

Used for impregnation of glass braid of wires and cables, as well as impregnating and coating varnish, temperature resistant up to 250°C.
Widely used to protect electrical machines and apparatus from moisture and mildew.
Used in the food industry as an antiadhesive coating for metal bakeware for baking meat.
As a protective coating for metal bakeware for baking bread and biscuits.

 

Mass content of solids, %

50 ± 2

  Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

17 - 27

  Drying time of varnish coating at (200 ± 5)°С to grade 3, minutes, not exceeding

15

  Mass content of hydrogen bonded to silicon, %, not exceeding

0,001

  Thermal elasticity of varnish coating at temperature 200°С, hours, at least

75

  Optical density, not exceeding

0,5

  Dielectric properties

Test conditions

 

М(15-35°C) 45-75%

M(200°C) <20%

24h(23°C) 93%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV/m, at least

75

35

35

 

 

 

SRE 22

Resin SRE 22 is used as an adhesive in the manufacture of flexible heat resistance mica glass used in electric machines and devices with insulation thermal class "H", as well as in electric machines and devices, temporarily operating at temperatures up to 250°C.
Used for the manufacture of glass-asbestos fabrics, sleeves and other materials.

 


Mass content of solids, %

50 ± 2

  Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

17 - 27

  Drying time of varnish coating  at (200 ± 5)°С to grade 3, minutes, not exceeding

60

  Mass content of hydrogen bonded to silicon, %, not exceeding

0,001

  Thermal elasticity of varnish coating at temperature  250°С, hours, at least

200

  Optical density, not exceeding

0,5

  Dielectric properties

Test conditions

 

М(15-35°С) 45-75%

M(200°С) <20%

24h(23°С) 93%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV/m, at least

75

35

35

 

 

SRE 23

Recommended for impregnation of windings of electrical machines and apparatus operating at 180-220°C or in humid environment.
Also used for manufacturing of heat-resistant protective enamels continuously exposed to a temperature of 180-200°C and briefly to 250-300°C.
Widely used as a corrosion-resistant coating of metal surfaces.

 

 

 Color of varnish by iodometric scale, not exceeding

0,5

Mass content of solids, %

52 ± 2

  Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

17 - 27

  Drying time of varnish coating  at (200 ± 5)°С to grade 3, minutes, not exceeding

30

  Cementing ability of varnish coating at (15-35)°C, hours, at least

206

  Thermal elasticity of varnish coating at temperature 220°С, hours, at least

100

Dielectric properties

Test conditions

 

R;М(15-35°С) 45-75%

R;M(180°С) <20%

24h(23°С) 93%;М(15-35°С) 45-75%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV/m, at least

60

35

30

 

 

SRE 15

For manufacture of heat-resistant and water-resistant insulating materials used in electrical machines and apparatus with insulation thermal class "H".
For the manufacture of glass fabrics, wire with fiber glass insulation, glass varnish stocking and insulating enamels.

 

 

 Viscosity by viscometer ВЗ-246 with nozzle diameter 4 mm at 20°С, с

30 - 70

  Mass content of solids, %

65 ± 2

  Relative viscosity, с

15 - 40

  Drying time of varnish coating  at (200 ± 5)°С to grade 3, minutes, not exceeding

35 - 75

  Thermal elasticity of varnish coating at temperature (200 ± 3)°С, hours, at least

150

  Dielectric properties

Test conditions

 

М(15-35°С) 45-75%

M(200°С) <20%

24h(23°С) 93%

  Specific electrical volume resistivity of varnish coating, Оhm×m, at least

1,0×1012

1,0×1010

1,0×1011

  Electric strength of varnish coating, MV/m, at least

70

28

50

 

 

 

 

 

Useful information
The main applications of silicon organic resins

The main applications of silicon organic resins

Silicone additives to concrete

Silicone additives to concrete

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