Water-Based Epoxy Insulation Varnish

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Guangzhou Green New Materials Co., Ltd.

VIP   Audited Supplier 3 years
Profile Certified by SGS/BV
FS7231
Electrical Insulating Varnish
White
Liquid
Epoxy
RoHS, ISO9001
6months
3209901090
Product Description

Water-based Epoxy Insulation Varnish

 

Product Description

 

Water-based insulation varnish FS7231 is composed of epoxy resin, specialty curing agent, water, etc. It is a one-component waterborne epoxy insulation system that has exceptional characteristics of low odor, long shelf life, strong paint film adhesion, high adhesive strength, and no paint slag. With recommend heating temperature of 110ºC~130ºC, FS7231 can be quickly cured after 120-180mins oven time.

 

Applications

This water-based epoxy insulation varnish is suitable for dipping and insulation treatment of coils of high-frequency transformers, fan motors and other electrical appliances.

 

Typical Properties

Item

Test Condition

Unit

Value

Reference

Appearance

--

-

white lotion

GB/T 1981.2-2009

Viscosity

Paint #4 cups 23±2ºC

S

13±3

Thick layer curing

125ºC±2ºC×180min

-

S1U1I3

Volume resistivity

Normal(23ºC±2ºC)

Ω·m

≥1.0×1011

GB/T 1981.2-2009

Soaking(23ºC±2ºC,24h)

≥1.0×108

Electric strength

Normal(23ºC±2ºC)

MV/m

≥70

Bond strength

N (Helical Coil Method)

N

≥50

GB/T 11028-1999

 

Processing

 

 Workpiece requirements: dry, clean, and pollution-free

 Impregnation process: vacuum dipping paint for 3-5 minutes, no need for the second vacuum negative pressure

 Drip paint: drip paint for 10-15 minutes or until the workpiece has no paint beads

 Baking conditions: 110~120ºCfor 2~3 hours (according to the thickness of the transformer stack, the baking time can be extended accordingly)

 

Precautions

 

 The amount of paint in the paint storage tank is matched according to the use plan. And a certain amount of new paint can be added every day to ensure the stability of the system.

 Use stainless steel paint storage tanks, paint dipping tanks, and pipes to avoid water stains and rust.

 When dipping paint, the workpiece should not enter the dipping tank at high temperature, the internal temperature of the workpiece should be cooled to room temperature. And the temperature of the paint in the dipping tank should not exceed 30ºC, if the temperature is too high, which may easily cause emulsion skinning.

 It is necessary to avoid mixing oily, acid-base and other substances, which will affect the stability of water-based paint, and even cause demulsification to be scrapped.

 During the curing process, pay attention to the control of the baking temperature and holding time. If the recommended baking temperature and time cannot meet the dryness requirements, it can be solved by increasing the baking temperature or prolonging the baking time.

 The air outlet of the oven should be unobstructed to facilitate the volatilization and discharge of water vapor, so as not to affect the curing speed of the insulating paint.

 

Package

 

1000kg/IBC tank,20kg/drum

 

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