RESEARCH AND DEVLOPMENT OF ELECTROINSULATING VARNISHES AND REISINS

TAILOR-MADE PRODUCTS

Setting impregnant parameters for specific customer needs.

TECHNICAL SERVICE/TESTING

We provide our customers with full technical service and also, if interested, participate in testing / introducing a new impregnant directly at the customer.

IMPREGNANT ANALYSIS

Measurement of various impregnant properties.

PROJECTS AND CO-OPERATION

VUKI a.s. researchers are regularly involved in solving APVV projects and also intensively cooperate with the Slovak Technical University in Bratislava.

BASIC TESTS

  • Density - STN EN ISO 2811-1
  • Viscosity - STN 67 3014 method B, STN 67 3016, DIN 53015, DIN 53214
  • Flow time - DIN 53 211, STN EN ISO 2431 (Ford 4, DIN 4, ISO 6)
  • Gel time - DIN 16 945  metóda A
  • Reaction time - STN EN 60455-2
  • Exotherm temperature - STN EN 60455-2, STN EN ISO 584
  • Temperature stability of liquid impregnant - STN EN 60455-2
  • Refractive index - STN 65 0341, refractive method
  • ​​​​​​​Acidity - STN EN ISO 3682: 2001-10
  • TBC stabilizer content in styrene - ASTM D4590 - 00
  • Impregnant impact test on lacquered wires - STN EN 60851-4,5; EN 60317
  • Melting point - STN 65 0310
  • Ability to cure in considerable thickness- STN EN 60464-2
  • Electrical strength - STN EN 60243-1
  • Internal resistivity - STN EN 62631-3-1
  • Hardness - STN EN ISO 868
  • Flexibility 5 (Mandrel test, 3 mm diameter) - STN EN 60464-2, STN 67 3079
  • Strength of reinforcement - STN EN 61 033 method A, method B, method C
  • Water absorption - STN EN ISO 62
  • Differential Scanning Calorimetry (DSC) - external test
  • Scanning electron microscope (SEM) measurements - external test

Technical data sheets

PRACTICE EXPERIENCE

Nie vždy je na vine impregnant

Impregnant is not always at fault

In some cases, during impregnation of electrical machine parts, sometimes winding terminals are dipped and then cured. In subsequent bending ...
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Viac impregnantu vo vinutí? Nie je problém!

More impregnant in the winding? No problem!

A frequent requirement of customers is to increase the amount of impregnant in the winding. This can be achieved by adjusting the ...
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Stačí si len zvyknúť

Just get used to it

When changing the type of impregnant at the customer, there is often a complaint to the operator about unpleasant odors. It is important to realize that employees ...
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PROFESSIONAL AND PUBLISHING ACTIVITY

ECOLOGY

We care about the quality of our and your life. We are improving our and your working conditions.
The future in chemistry is not indifferent to us. Our existing and potential customers determine the basic direction in the development and production of our products. We recommend them the best solutions.

Styrene and solvent impregnants vs. low-emission impregnants

ECOLOGY

ELECTROINSULATING VARNISHES, RESINS AND WINDING WIRES COMMERCE

Ing. Zuzana Rondziková

Ing. Zuzana Rondziková

Ing. Miloš Nunvář

Ing. Miloš Nunvář

commercial representative

+421 906 063 213
+421 915 881 316
nunvar@

Martin Kukliš

Martin Kukliš

commercial representative

+421 906 063 231
+421 905 918 796
kuklis@

Ing. Jana Ďuračková Porubenská

Ing. Jana Ďuračková Porubenská

production and trade director

+421 906 063 229
+421 918 884 682 
porubenska@

BUSINESS REPRESENTATION