Electrical Insulating Varnish

Styrene-Free Varnish

This is a low-odor type impregnation varnish used in the insulation process of the coils and is a solventless varnish that does not use a styrene monomer.

Product name

Styrene-free varnish (V313-00, V573-00, V598-00)

Characteristics

  • Low-odor and solventless varnish that allows a good working environment
  • Does not contain substances with offensive odors specified in the Offensive Odor Control Act.
  • Excellent impregnation ability and workability with low viscosity and a long pot life

Application example

  • For impregnation of general-purpose motor and fan motor coils.
  • For impregnation of sealed motor coils, etc.

General characteristics

Item Condition Unit Measured value
V313-00 V573-00 V598-00
Composition Epoxy modified polyester Epoxy resin Imide modified epoxy resin
Heat resistance
category
F F H
Appearance Visual Light yellow,
transparent
Light yellow,
transparent
Brown
Viscosity 25℃/B type mPa・s 1200 550 200 (60℃)
Specific gravity 25℃/set to touch 1.15 1.18 1.18
Standard cure
condition
℃ x h 130 x 4 150 x 8 200 x 12
Pot life 40℃ Day 30 2 8
Monomer for
viscosity
adjustment
V716-00
Standard
formulation
Weight V313-00/V716-00/V066-00
=100/100/2
V573-00/V032-00
=100/86
V598-00/V033-00
=34.2/20
Volume
resistivity
normal state Ω・cm 5 x 1015 7 x 1016 3 x 1016
Volume
resistivity
after submergence 2 x 1015
Characteristics Low odor High heat resistance, high adhesive strength High heat resistance, high adhesive strength
Major application Induction motors, 3-phase motors, fan motors, and general-purpose motors Large-sized rotary machines Train motors
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