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Universal

SREECHEM ELECTRICAL INSULATION SYSTEM

INSULTOP  - 'UNIVERSAL'
A Modified Alkyd Resin base for Class - F Electrical Insulating Varnish
(Baking Type)

Product Description

Insultop universal is a modified Alkyd Resin consisting of mixture of solids and solvents. It is recommended for Class-F insulation up to surface temperature up to 155°C. It gives excellent tough and anti-tracking resistant to moisture and oil.

Application Areas

Insultop Universal is used for impregnation of Starters, Armature winding, transformers etc. by not and cold dipping or vacuum impregnation.

Physical Properties

Colour & Appearance : Sparkling red clear liquid
Solids content (%)
 (2.0 gm./130°C./2 hours)		 : 45±2
Viscosity at 27°C. on FC-4 Cup (Secs.) : 70±10
Specific Gravity at 27°C : 0.96±0.02
Flash Point : Above 30°C.
Recommended Thinner : Insulthin Universal
(SRL Make)
Storage stability (in original sealed condition in R.T.) : 12 months
Compatibility with Thinner  (%) : More than 300

 

 

 

 

 

 

 

Curing Cycle:

Time (Hours) : 6 5 3 2
Temperature (Deg. C.) : 120 130 150 160

Drying Properties

Drying in thin layer at 120°C. : 1 Hour 30 minutes
Ability to cure in considerable thickness :-
(curing schedule : 113-120°C. for 6 hours)		    
Upper surface : S.1
Underside : U.1
Interior : 1.4.1
Resoftening at 165°C/1hr. : No change.
     
Cured Varnish Properties
Dielectric Strength (kV/mm)
Flexibility (Mandrel Test)		 : Passes
In air at Room temperature : 85
In air at 155°C : 65
After 24 hours immersion in water : 60
Tracking Index at 200 V. (Drops) : More than 300
     
Volume Resistivity (Ohm-cm)    
     
In air at 25 Deg. C. : 3.3*1012
After 7 days immersion in water : 4.2*1012
Dielectric constant at Room Temperature at 230v/Hz : 3.5
Temperature Index by TGA (Deg.C) : 160
     
Resistance to Transformer Oil
Visual Examination : No evidence of attack
Total Acidity (mg/Koll/gm) : Non-traceable
Sludge Value (% by mass) : Non-detectable.

Packing

Insultop Universal : 900grams, 4kgs.
20kgs., 180 kgs.
Thinner : 850 grams & 20 kgs.

Safety Measures

Insultop Universal is a flammable liquid. So, dry chemical powder or CO2 or foam is to be used in case of fire and hand-gloves and safety appliances should be used while handling the product. In case of contact, the affected area should be washed with soap and plenty of water.

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02 Sreechem Resins Limited
Last modified: January 13, 2003