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Fuwang Home >> Products >> Presspaper/Pressboard >> Presspaper >> Natural Insulating Paper
Natural Insulating Paper

Type: IEC P.4.1  
                 
    1. COMPOSITION AND PRESENTATION

    This product made from highly purified unbleached sulphate pulp.
    Normal Thickness: 0.1 每 0.5mm
    Normal Width:  1000mm, Max. width : 2000mm
    Packing: in roll; 350kgs or 700kgs/roll
    Color: natural(brown)

    2. PROPERTIES & APPLICATIONS
    -Smooth                  
    -tough      
    -good mechanical    
    -electric strength.
    It is used widely in engines, electrical appliance and instrument as insulating material, and also is used to make polyester film/kraft paper flexible laminate type 6520.

    3. MAIN TECHNICAL CHARACTERISTICS

Items
Standard IEC60641-3-2(P.4.1)
Thickness Deviation
㊣10% max.
Density
1.0 -1.20 g/cm3
Tensile strength MD
≡ 80 Mpa
Tensile Strength CMD
≡  40 Mpa
Tensile strength after folding  MD
A
B
≡  35 Mpa
≡  40 Mpa
Tensile strength after folding  CMD
≡  60 Mpa
Elongation
MD
≡ 2.0%
CMD
≡ 7.0%
Elongation after folding
MD
≡ 1.2%
CMD
≡ 5.0%
Ash Content
≒ 1.0%
PH Value of Aqueous Extract
6 - 9
Conductivity of Aqueous Extract
≒ 8.0 mS/m
 
 
Electrical Strength in air
Thickness
A
B
0.1mm
≡ 9 KV/mm
≡ 9 KV/mm
0.15 每 0.25mm
≡ 10 KV/mm
≡ 10 KV/mm
0.30 每 0.35mm
≡ 10 KV/mm
--
0.40 每 0.50mm
≡ 9 KV/mm
--
 
 
Electrical Strength after folding in air
Thickness
A
B
0.1mm
≡ 7 KV/mm
≡ 7 KV/mm
0.15 每 0.25mm
≡ 8 KV/mm
≡ 8 KV/mm
0.30 每 0.35mm
≡ 8 KV/mm
--
0.40 每 0.50mm
≡ 7 KV/mm
--
Moisture Content
≒ 8 %

 
 
 
 
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