SynChem – Resins & Varnishes Voltatex® 4100 1-component-resin

Voltatex® 4100 is a clear, ready-to-use impregnating resin, thermosetting, yellow-brown glazing, styrene-free 1K dip resin based on unsaturated polyesterimide resins.

  • single component
  • very high capillary activity 
  • low evaporation losses while processing 
  • high resin retention in the object 
  • low draining losses in the oven 
  • high efficiency due to favourable curing conditionsand
  • excellent impregnating results

The cured resin compound is characterized by: 

  • good resistance against solvent gases and against long term thermal stress 
  • high bond strength 
  • low tendency to crack 
  • tough-elastic compound
Download datasheet

Application

  • electric motors 
  • transformers 
  • suitable for: Insulation systems of thermal class 180 (H)

Standards

Suitable for: Insulating systems up to thermal class H acc. to IEC 60085

  • Temperature index according to IEC 60455-3-5: Type 180
  • UL file no.: E 101752 (M) Underwriters Laboratories Inc, USA.
  • RoHS-compliant 2011/65/EC
  • REACh-compliant 2006/121/EU
  • Polybromited Diphenylether 2003/11/EU
  • UL approved with enamelled Cu wire:
Twisted Pair ASTM D2307 MW 30:200
    MW 35:180
Helical Coil ASTM D2519 MW 30:200

 

 

 

Electro insulating systems according to UL 1446 (IEC 61858)

Class 130 C190HE
  R150HE
  Z130HE
  Z150HE
Class 155 C290HE
  CZ255HE
  R201HE
  R203HE
  Z200HE

Delivery forms

Voltatex® 4100 is supplied in one-way-cans containing 25 kg.

Storage

In closed original cans the resin can be stored for more than 6 months if provided storage temperature does not exceed 25 °C. Opened containers have to be closed imme diately to protect the material from daylight!

Hardening

In order to minimize evaporation of reactive components while curing the impregnated objects should be heated up to the curing temperature in the shortest possible time. The air flow in the curing oven should be kept to the minimum permitted by safety considerations.
Curing time: at 130 °C - 2h

Protection

Cured Voltatex® 4100 is biologically inactive and not dangerous to health. When processing the liquid resin please refer to the Material Safety Data Sheet (MSDS) for Voltatex® 4100. 

Cleaning

Once cured Voltatex® 4100 is almost insoluble. Therefore, application equipment should be cleaned regularly with cleaner Voltatex® T050.
All equipment cleaning and maintenance should be carried out in accordance with the equipment manufacturer’s instructions.

Processing

The impregnating resin can be applied by using 

  • all kind of conventional dip & bake equipment 
  • continuous and vacuum dip processes 
  • VPI process

Unlimited tank stability can be achieved as long as Voltatex® 4100 is kept below 25 °C and at least 30 % of the tank content is used and replaced
with fresh resin per month.

Technical data

Mechanical
Property Unit of measure Conditions  Values  Test method 
Bond strength of twisted pairs 25 °C    120 ± 10 IEC 60455-2, test method A acc. IEC 61033
Bond strength of twisted coils 130 °C    28 ± 5 IEC 60455-2, test method A acc. IEC 61033
Bond strength of twisted coils 155 °C    27 ± 4 IEC 60455-2, test method A acc. IEC 61033
Bond strength of twisted coils 180 °C    26 ± 4 IEC 60455-2, test method A acc. IEC 61033
Shore-D-hardness    25°C 60 ± 5 IEC 60455-2, test method acc. ISO 868
Bond strength IEC 60317-13  °C  MW 35 209 IEC 61033, method B, final point 22 N
Thermal
Property Unit of measure Conditions  Values  Test method 
Temperature index  °C    180 IEC 60455-3-5, test method acc. IEC 60216
Testing voltage IEC 60317-8  °C  MW 30 207 IEC 60172
Testing voltage IEC 60317-13  °C  MW 35 196 IEC 60172
Glass transition temperature  °C    ca. 10-60  
Heat conductivity  W(m*k)^-1    0.17 acc. DIN 51046
Chemical
Property Unit of measure Conditions  Values  Test method 
Resistance    Transformatorenöl resistant IEC 60455-2, test method acc. ISO 175
Water absorption  after 96h at 23 °C 0.6-0.8 IEC 60455-2, test method 1 acc. ISO 62
Liquid phase
Property Unit of measure Values  Test method 
Viscosity  mPas  250 ± 30 at 25 °C acc. DIN 53019
VOC acc. 31. BLmSchV    appr. 5.7 % acc. DIN EN 60455-3-5:2006
Flow time  65 ± 8 at 23 °C acc. DIN 53211
Reaction process gel time  min  6.0-12.0 at 100 °C acc. company standard
Reaction process reaction time  min  14.0-24.0 at 100 °C acc. company standard
Electrical
Property Unit of measure Conditions  Typ. values  Test method 
Dielectric strength at 23 °C and 50 % r.h.  kV/mm    60 IEC 60455-2, test method acc. IEC 60243-1
Dielectric strength at 155 °C  kV/mm    70 IEC 60455-2, test method acc. IEC 60243-1
Dielectric strength at 23 °C after 96 h storage at 92 % r.h.  kV/mm    65 IEC 60455-2, test method ac. IEC 60243-1
Dielectric strength at 105 °C after 168 h oil immersion  kV/mm    94 IEC 60455-2, test method acc. IEC 60243-1
Specific volume resistance at 155 °C  Ω*cm    10^9 - 10^11 acc. IEC 60455-2, test method acc. IEC 60093
Creep resistance      CTI 600 M acc. IEC 60455-2, test method acc. 6.2 IEC 60112
Loss factor cross section 0.2=200x10^-3  °C    110-150 IEC 60455-2, test method acc. IEC 60250