Electroinsulating organosilicon varnish KO-921
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Production Organosilicon products
Solution of Polymethylphenylsiloxane Resin in Toluene
Trade Name: Siliconorganic varnish type KO-921
H.S. Code 3208 90 910 0
¹ UN: 1263
Main applications:
- for impregnation of wires and cables glass braid;
- as heat resistant impregnating and covering material used at temperature up to 250 °Ñ;
- for electric machines and apparatus protection from moisture and moulds;
- for electric machines and apparatus isolation;
- for heat-resistant, organosilicate, electroinsulating enamels production.
Features:
- reduced temperature of drying;
- dielectric;
- moisture and mould resistant.
Quality Data:
| Brand B | |
| Appearance | Homogeneous transparent solution without mechanical impurities. Opalescence is possible |
| Non volatiles content, % | 48 - 52 |
| Relative viscosity on viscosimeter VZ-4, s | 17 - 27 |
| Time of varnish film drying up to stage 3, minutes, max | 15 |
| Hydrogen bound with silicon, %, max | 0,0010 |
| Varnish film thermoelasticity, h, min | 75 |
| Specific volume electric resistance of varnish film, Om·m, min | |
| Ì (15 - 35 °Ñ) 45 - 75 % | 1·1012 |
| Ì (180 °Ñ) < 20 % | 1·1010 |
| Ì (200 °Ñ) < 20 % | - |
| 24 h (23 °Ñ) 93 % | 1·1011 |
| Varnish film electric strength, MV/m, min | |
| Ì (15 - 35 °Ñ) 45 - 75 % | 70 |
| Ì (180 °Ñ) < 20 % | 35 |
| Ì (200 °Ñ) < 20 % | - |
| 24 h (23 °Ñ) 93 % | 35 |
| Varnish optical density, max | 0,5 |
Storage Conditions: Store in original tare at temperature from +5 to +30 °Ñ.
Storage Warranty: 12 months.
Packing: Steel barrels.
Transport Type: Railway, road.
Labelling:
- UN Hazard Class: 3
- UN Pack Group: I
