Phenolic cotton cloth laminated sheets

3025 Phenolic cotton cloth laminated sheet are made from cotton cloth that impregnated with phenolic resin under pressure and heat. With high mechanical strength and electrical  properties

3025A, 3025B, 3026, 3027 (China standard) is in accordance with C, CE, L, LE (NEMA Standard)

1. Application:

3025 Phenolic cotton cloth laminated sheets can be used for a construction material as well as an electrical insulation material in various machines and equipments like gear running and friction wheel or friction surfaces.

2. Thermal grade:Class E (120℃).
3. Thickness: 0.5-120mm;         Size: 980x1980mm, 1020x2020mm, 1220x2440mm

4. Color: Brown

5. The other size can be supplied according to customers’ requests.

※Products can be supplied sheets or shapes according to customer drawing

※Note: The values noted in above technical specification are given only for our customers’ reference and should not be used in writing specifications.

6.Technical data:

Properties

Unit

Index Value

Fact Value

Flexural strength perpendicular to laminations

MPa

≥91

115

Martin  resistance temperature

>125

132

Tensile strength

MPa

≥55

76

Impact strength parallel to laminations (Charpy)

KJ/m2

≥2.5

3.2

Bonding strength

N

≥5500

6900

Insulation resistance after immersion in water          (D-24/23)

Ω

≥1.0×106

2.7×106

Dielectric strength perpendicular to laminate                      (in 90±2℃ transformer oil, 2 mm)

MV/m

0.5-1mm>4.0

4.9

1.1-2mm>3.0

4.9

Density

g/cm3

1.3-1.5

1.4

Color

\

Natural

Reference standard

Enterprise Standard

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