CX220R

CX220R insulating varnish is heat resistant (2oo°C) in accordance with ROHS, REACH, halogen free and suitable for use with enamelled wire varnishes.

Description

Introduction

CX220R insulating varnish is heat resistant (2oo°C) in accordance with ROHS, REACH, halogen free and suitable for use with enamelled wire varnishes.

1、Product characteristics

Polyamideimide insulating varnish

High speed burn-in properties

Solvent resistant, hot and cold catalyst resistant

Thermal class: Class (2oo°C)

Compliant with EU ROHS, REACH, halogen free.

  1. Application

Suitable for enamelled wire enamels

  1. Varnish characteristics

The specifications of the varnishes are shown in Table 1 below

Name Non-volatile fraction (%, 200°C/2h) Viscosity (Pa.s, 30°C) Remarks

CX220C 35.0sh2.0 3.0sh0.5 General purpose

  1. Enamelled wire properties
ItemCX220C
Burning ovensHorizontal heat exchange furnace (Taiwan)
Coating method8 rounds
Burn-in conditionsFurnace temperatureInlet/centre/outlet = 440/490/510
Wire speed475053
Bare wire0.3990.3990.399
Inch methodOuter diameter0.4430.4430.445
Skin adhesion thickness0.0220.0220.022
Copper wire appearanceVisual inspectionSmoothSmoothSmooth
Pinholes per 5cm000
AdhesionAcute cut-offgoodgoodgood
ElongationElongation Qualified2d2d2d
Thermal shock resistance2d240°C240°C240°C
Thermal softening temperature(°C weighted 4.1N)428422415
temperature (KV)11.512.212
Insulation breaking voltage at roomAfter heating deterioration(260°C/168h,%)848385

 

No treatment6 hours6 hours6 hours
Solvent resistanceXylene (60/30min)6 hours6 hours6 hours
Benzene B (60°C/30min)6 hours6 hours6 hours
Type of firing furnace: hot air circulation (L=4M) Heat resistance: 220°C

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