Balajicork >> Cork Products
Complete Solution for Transformer Industries at Balaji Cork & Rubber Inc. || Our Dealer's Network are Continuosly Increased ||
High Density Pre Compressed Board
Balaji Board Grade 3.1
Medium Density Pre Compressed Board
Balaji Board Grade 2.5
Insulating Press Paper
Insulating DDP Paper
Insulating Kraft Paper

Contact Us:

Balaji Cork & Rubber Inc.
Plot No. 55, I.D.C. Mehrauli Road, Gurgaon (INDIA)

Phone: 0091- 124- 4085363- 64
Fax: 0091- 124- 4085365

E- mail: info@balajicork.com, balajicork@yahoo.co.in
Website: www.balajicork.com, www.rubbercork.in
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BALAJICORK- Insulating Press Paper (IPP)

 

 

Insulation  press  papers  of  the  type  having  the  required  quality  specifications  for  electrical insulation  purposes  and  are  made  rom  virgin  pulp  of  high  purity,  which  ensures  that  product is  totally  free  from  any  impurities  and  conductive  particles  in  particular.  Insulation press paper  is  available  in  reel  form  with  a  maximum  width  of  1500mm  and  widely  used  as electrical insulation  between  layers  of  wound  coils  in  transformers,  capacitors, electrical motors  and  such  electrical  equipments.  We offer these materials in natural brown colors. The material meets to IEC:  60641‐3‐2, P.4.1 specifications for electrical purposes.     

 

PROPERTIES  PRESS  PAPER  

Specification:   IEC60641‐3‐2  P4.1  

Properties  

Units  

Specified  value  

Thickness  

mm  

0.125  ‐ 0.50  

Density  (Range)  

g/cc  

1  ‐ 1.20  

Oil  absorption  (Min)  

%  

10  

Electric  strength  (Min)                              In  Air                                                                        In  Oil       

kV/mm  

.                   10                    .  
40  ‐ 65  

Tensile  strength  (Min)                               MD                                                                         CD                  .                                           

Mpa  

80         
40  

Elongation  (Min)                                         MD                                                                         CD  

%  

1.0  ‐  2.5                                   6.0  ‐ 7.0  

Shrinkage  (Max)      
                                                                       MD                  
                                                                       CD  
                                                                       PD  

%  

  
1  
1.5   
 7  

Conductivity  of  Aqueous  Extract  (Max)  

mS/m  

8  

pH   of  Aqueous  Extract  (Range)  

   

6.0  ‐ 9.0  

Moisture  Content  (Max)  

%  

8  

Ash  Content  (Max)  

%  

1  

 

The paper is available in roll form, standard width 500mm/750 mm/1500mm. Core ID will be 76mm.
 
Tolerances on thickness:   ± 10%

 
Copyright © Balaji Cork & Rubber Inc., All Rights Reserved.