КО-945
It is a homogeneous transparent solution of polymethylphenylsiloxane resin modified with epoxy resin. The solvent is toluene.
The lacquer KO-945 is characterized by:
|
№ п/п
|
Indicator name |
Norm |
|
1
|
The presence of mechanical inclusions
|
Absence of
|
|
2
|
Appearance of varnish |
Homogeneous transparent solution, slight opalescence is allowed |
|
3
|
Mass fraction of nonvolatile substances,% of mass. |
702
|
|
4
|
Viscosity according to viscometer VZ-4, s |
93,0 – 160,0
|
|
5
|
Drying time of the lacquer film at (200 ± 5) 0С to the degree of 3, min, not more than |
24 ч
|
|
6
|
Mass fraction of hydrogen bonded to silicon,%, not more than |
0,0010
|
|
7
|
Thermoelasticity of lacquer film on copper at 2000С, h, not less than |
70
|
|
8
|
Oil resistance of varnish film, N (kgf), not less than |
49 (5)
|
|
9
|
Hardness of the varnish film on the pendulum device ME-3, not less than
при 20±50С
при 180±20С
|
0,45
0,13
|
|
10
|
Specific volumetric electrical resistance of the lacquer film, Ohm * m, not less than
М(15-350С) 45 – 75%
24ч(230С) 93%
|
1*1012
1*1011
|
|
11
|
Electric strength of the varnish film, MV / mm, not less than
М(15-350С) 45 – 75%
|
60
|
|
12
|
Оптическая плотность лака, не более
|
1,5
|
OOO KONDOR COMPANY
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