Electroinsulating organosilicon varnish KO-921


Extended name:  Solution of Polymethylphenylsiloxane Resin in Toluene
№ UN:  1263
H.S. Code:  3208 90 910 0
Main applications: 
  • for impregnation of wires and cables glass braid;
  • as heat resistant impregnating and covering material used at temperature up to 250 °С;
  • 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
AppearanceHomogeneous transparent solution without mechanical impurities. Opalescence is possible
Non volatiles content, %48 - 52
Relative viscosity on viscosimeter VZ-4, s17 - 27
Time of varnish film drying up to stage 3, minutes, max 15
Hydrogen bound with silicon, %, max0,0010
Varnish film thermoelasticity, h, min75
Specific volume electric resistance of varnish film, Om·m, min
М (15 - 35 °С) 45 - 75 %1·1012
М (180 °С) < 20 %1·1010
М (200 °С) < 20 %-
24 h (23 °С) 93 %1·1011
Varnish film electric strength, MV/m, min
М (15 - 35 °С) 45 - 75 %70
М (180 °С) < 20 %35
М (200 °С) < 20 %-
24 h (23 °С) 93 %35
Varnish optical density, max0,5

Storage Conditions: Store in original tare at temperature from +5 to +30 °С.

Storage Warranty: 12 months.

Packing: Steel barrels.

Transport Type: Railway, road.

Labelling:

  • UN Hazard Class: 3
  • UN Pack Group: I



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