impregnating varnish of heat resisting polyester R-155

Contact Person: Mr. shi Nikhi
Company Name: Jiaxing Rota-Ropa Insulating Material Co., Ltd.
Tel: 86-573-83188888
Address: Zhejiang,Jiaxing,Fengqiao
Country/Region: China

Product Detailed

impregnating varnish 1.thermal class F 2.good insulation performance 2.oil and arc resistance, 3.fast dry,shining film

impregnating varnish

1.made from amino resin, polyester resin and xylene etc.

2.used for small and medium type motor winding, transformer, ballast and other apparatus coil.

3. also suitable for hermetic motor.

4.Technical Data

Properties		Unit	Standard Values
appearance			Reddish brown liquid, uniform without mechanical impurities
Viscosity, 23, Tu-4# cup		seconds	35-60
Solids content 105±2, 2 h		%	46±5
Drying time, 130±2		min	≤ 60
Acid number		mgKOH/g	≤ 10
Flexibility, 150±2, 30h			no crack
Curing in thick layer			Not worse than S1, U1, I4.2
Dielectric strength	At room temperature	MV/m	≥80
	After immersion in water		≥60
Volume resistivity	At room temperature	Ω.m	≥ 1×1012
	After immersion in water, 24h		≥ 1×1010
	130±2		≥ 1×108