Description
| Properties of varnish as supplied | ||
|---|---|---|
| Properties | Value | Unit |
| Shelf life at 23°C | 24 | months |
| Appearance/colour | Liquid/brownish | |
| Density at 23°C, DIN 51757 | 0,94-0,97 | g/cm3 |
| Content of binder (1g/1h/130°C), ISO 3251 | 48-50 | % |
| Flow time at 21°C with B4 cup | 135-155 | sec |
| Curing condition | ||||||
|---|---|---|---|---|---|---|
| Temperature | 120 | 130 | 140 | 150 | 160 | º C |
| Curing Time | 6-8 | 5-7 | 3-4 | h | ||
| Mechanical properties in dried condition | |||
|---|---|---|---|
| Test criterion | Condition | Value | Unit |
| Bond strength, Elantas test following 61083 method (helical coil) | 23 °C 155°C 180 °C |
> 160 > 80 > 40 |
N |
| Mandrel test ( 3 mm ) Elantas test following 60464-3 | 23 °C | 180 | ° |
| Temperature Index | ||
|---|---|---|
| Test criterion | Condition | Value |
| Proof voltage Elantas test following IEC 60172 (twisted pair) | 1000 V | – |
| Bond strength, Elantas test Following IEC 60290 (helical coil) | 20 N | – |
| Dielectric properties in dried condition | |||
|---|---|---|---|
| Test criterion | Condition | Value | Unit |
| Volume resistivity after water immersion Elantas test following IEC 60464 part 2 | Initial value 7 d storing |
>1015 >1015 |
Ω × cm |
| Volume resistivity at elevated temperature Elantas test following IEC 60464 part 2 | 155°C 180 °C |
>1011 >1011 |
Ω × cm |
| Electrical strength, after water immersion Elantas test following IEC 60464 part 2 | Initial value 24 h storing |
>120 | KV/mm |
| Electrical strength, at elevated temperature Elantas test following IEC 60464 part 2 | 155 °C 180 °C | > 80 – |
KV/mm |
| Temperature at relative permittivity tang °= 0,1 Elantas test following IEC 60250 | 50 Hz 1 KHz 10 KHz |
> 140 > 150 > 160 |
°C |
| Resistance to chemicals | |||
|---|---|---|---|
| Test criterion | Condition | Value | Unit |
| Resistance to vapour of solvents Elantas test following IEC 60464 part 2 |
Acetone Xylene Methanol Hexane Carbon disulphide |
resistant resistant resistant resistant resistant | – |
| Water absorption Elantas test following IEC 62 |
at 23 °C 0,5 h at 100 °C |
< 5 < 10 |
mg |
| Resistance to liquids after storing Elantas test following IEC 175 |
Ammonia solution 10 % Acetic acid 5 % Sodium hydroxide 1% Hydrochloiric acid 10 % Sulforic acid 30 % Iso-octane Toluol Transformer oil BeckFluid 9902 Solution of detergent |
<5 <5 <5 <5 <5 <5 <5 <5 <5 <5 |
mg |
Our advice in application technology given verbally, in writing and by testing corresponds to the best of our knowledge and belief, but is intended as information given without obligation, also with respect to any protective rights held by third parties. It does not relieve your own responsibility to check the products for their suitability to the purposes and processes intended. The application usage and processing of the product are beyond our reasonable control and will completely fall into your scope of responsibility. Should there nevertheless be a case of liability from our side, this will be limited to any damage to the value of the merchandise delivered by us. Naturally, we assume responsibility for the unobjectionable quality of our products, as defined in our general terms and condition
