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Insulation Kraft Paper

Crepe Paper are finished as full size rolls or slit into strips for use primarily as insulation of high-voltage parts in electrical equipment /transformers construction. The high degree of crepe guarantees problem free manual or automated processing & provides firm ply-to-ply bonds.

SKPM's electric grade paper have excellent acceptance in Indian market  & available in 1.5 / 2.0 / 2.5 / 4.0 mil.

QUALITY/CHARACTERISTIC UNITS TECHNICAL SPECIFICATIONS
Standard mil mil 1.50 2.00 2.50 4.00
Basic Weight GM/M² 29 ± 1 39 ± 1 49 ± 1 78 ± 1
Thickness µ 38 ± 1 51 ± 1 63.5 ± 1 101.6 ± 1
Density gm/cm³ 0.8 ± 0.05 0.8 ± 0.05 0.8 ± 0.05 0.8 ± 0.05
Tensile Srength (MD/CD) Kg/cm 3.6/1.8 4.7/2.4 6.0/3.0 9.0/5.0
Breaking Length (MD/CD) Meter 3500/1500 8000/4000 8000/4000 8000/4000
Tensile Index (MD/CD) Nm/gm 78/39 78/38 min 78/38 min 78/38 min
Stretch (MD/CD) % 2.0/4.0 min 2.0/4.0 min 2.0/4.0 min 2.0/4.0 min
Tear Index (MD/CD) mNm²/gm 5.0/6.0 5.0/6.0 min 5.0/6.0 min 5.0/6.0 min
Tear Factor (MD/CD) - 50/60 min 50/60 min 50/60 min 60/70 min
Heat Stability (Reduction of
bursting Strength) 1200C/168hrs.
% 20 max 20 max 20 max 20 max
MOISTURE % 8 max 8 max 8 max 8 max
PH of 5% aqueous extract - 6 to 8 6 to 8 6 to 8 6 to 8
Conductivity of 5% aqueous extract mS/m 10 max 10 max 10 max 10 max
Air Permeability µm/Pa. Sec 0.5 - 1.0 0.5 - 1.0 0.5 - 1.0 0.5 - 1.0
Gurley Porosity Sec/100 ml 580 650 - 580 800 850
Electric Strength in Air KV/mm 7.0 min 7.0 min 7.0 min 7.0 min
Water absorption (MD/CD) Mm/4 min 10/10 min 10/10 min 10/10 min 10/10 min


End Usage of Electrical Insulation Kraft Paper