Varnish GF-95

Purpose (GF-95)

GF 95 lacquer is intended for impregnation of windings of electrical machines, apparatus and transformers with insulation of heat resistance class B.

Application

If necessary, dilute GF 95 diluted with toluene, xylene, solvent or a mixture of one of these solvents with white spirit (nefras-C4 – 150/200) in a 1: 1 ratio. Stir the varnish thoroughly before use. The varnish is applied to the surface by dipping, pouring, spraying and brushing.

Security measures

Varnish GF-95 is flammable, it can not work with open fire. If work is carried out indoors, it is necessary to provide constant airing. Works can be performed only with the use of personal protective equipment and rubber gloves. Do not allow varnish to enter the respiratory and digestive organs. If the varnish comes into contact with the skin, wash it with warm water and soap.

 

Specifications (GF-95)

No	Name of the indicator	Value
one	The appearance of the film	After drying, the varnish should form a glossy, uniform, smooth film. Mechanical inclusions in the varnish should not be.
2	Conditional viscosity according to the viscometer of the type VZ-246 with a nozzle diameter of 4 mm, at a temperature of (20.0 ± 0.5) ° C not less,  (s)	30-50
3	Mass fraction of nonvolatile substances  (%)	46-52
four	Milling degree, not more, (µm)	2
five	Drying time to degree 3 at a temperature of (20 ± 2) ° С,  (h)	2
6	The hardness of the film on a pendulum device type TML (pendulum B) is not less  (standard units)	0.29
7	Acid number not more than  (mg KOH)	12
eight	Thermoelasticity of the film at a temperature of (150 ± 2) ° С, not less than,  (h)	48
9	Oil resistance of the film, not less,  (N)	59.0
ten	Film strength not less than,  (MB / m)	at a temperature of (20 ± 2) ° С – 70; at a temperature of (120 ± 2) ° С – 45; after the action of water for 24 hours at a temperature of (20 ± 2) ° С – 25.