China 8 Year Exporter Laminate Composition - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F manufacturers and Exporter

8 Year Exporter Laminate Composition - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F

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continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for Nema Fr4, Copper Braid Flexible Bus Bar For Battery Connection, FRP profile, Our tenet is "Reasonable prices, economical production time and very best service" We hope to cooperate with much more shoppers for mutual enhancement and benefits.

8 Year Exporter Laminate Composition - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F Detail:

Technical Requirements

1.1 Appearance: the surface of sheet shall be flat and smooth, free of air bubbles, wrinkles or cracks and reasonably free of other small imperfections such as scratches, dents, etc. The edge of sheet shall be tidy and be free of delaminations and cracks. The color shall be substantially uniform, but a few stains are permissible.

1.2 Dimension and allowed tolerance

1.2.1 Width and Length of Sheets

Width & Length (mm)	Tolerance (mm)
＞970～3000	+/-25

1.2.2 The nominal thickness & tolerance

Nominal thickness (mm)

Tolerance (mm)

Nominal thickness (mm)

Tolerance (mm)

0.5

0.6

0.8

1.0

1.2

1.6

2.0

2.5

3.0

4.0

5.0

6.0

8.0

+/-0.12

+/-0.13

+/-0.16

+/-0.18

+/-0.20

+/-0.24

+/-0.28

+/-0.33

+/-0.37

+/-0.45

+/-0.52

+/-0.60

+/-0.72

+/-0.82

+/-0.94

+/-1.02

+/-1.12

+/-1.30

+/-1.50

+/-1.70

+/-1.95

+/-2.10

+/-2.30

+/-2.45

+/-2.50

+/-2.80

Remarks: For the non-nominal thickness not listed in this table, the deviation shall be the same as that of the next greater thickness.

1.3 Bending Deflection

Thickness (mm)

Bending Deflection

1000mm（Ruler length） (mm)

500mm（Ruler length）(mm)

3.0～6.0

＞6.0～8.0

＞8.0

≤10

≤8

≤6

≤2.5

≤2.0

≤1.5

1.4 Mechanical processing: the sheets shall be free of cracks, delaminations and scraps when such machining as sawing, drilling, lathing and milling is applied

1.5 The physical, mechanical and electrcal properties

No.	Properties	Unit	Standard value	Typical value
1	Density	g/cm³	1.7～1.95	1.94
2	Water absoprtion (2mm sheet)	mg	≤20	5.7
3	Flexural strength, perpendicular to laminations	MPa	≥340	417
4	Impact strength (Charpy, notch)	kJ/m²	≥30	50
5	Dielectric dissipation factor 50Hz	—	≤5.5	4.48
6	Dielectric constant 50Hz	—	≤0.04	0.02
7	Insulation resistance ( After 24h in water)	Ω	≥5.0 x10⁸	4.9 x10⁹
8	Dielectric strength, perpendicular to laminationsin transformer oil at 90℃+/-2℃, 1mm sheet	kV/mm	≥14.2	16.8
9	Breakdown Voltage, parallel to laminationsin transformer oil at 90℃+/-2℃	kV	≥35	38

Packing, Transportation and Storage

The sheets shall be stored in a place where temperature is no higher than 40℃, and be placed horizontally on a bedplate with a height of 50mm or above. Keep away from fire, heat (heating apparatus) and direct sunshine. The storage life of sheets is 18 months from the date of leaving factory. If the storage duration is over 18 months, the product also could be used after being tested to be qualified.

3240 (3)
3240 (4)

Remarks and Precautions for Application

A high speed and small cutting depth g shall be applied when machining because of sheets’ weak thermal conductivity.

Machining and cutting this product will release much dust and smoke. Suitable measures should be taken to ensure dust levels are within acceptable limits during operations. Local exhaust ventilation and using the dust/particle masks are advised.

The sheets are subject to moisture after being machined, a coating of insulating vanish is recommended.

3240 machining parts(10)
CNC machining insulation parts(1)

Production Equipment

3240 (7)
3240 (8)
3240 (9)
3240 (10)

The Package For Laminated Sheets

3240 (12)
3240 (11)

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While using the "Client-Oriented" company philosophy, a demanding high-quality management method, innovative producing products and also a sturdy R&D workforce, we always deliver premium quality merchandise, superb solutions and aggressive selling prices for 8 Year Exporter Laminate Composition - 3240 Epoxy Phenolic Glass Cloth Base Rigid Laminated Sheet – D&F , The product will supply to all over the world, such as: Hanover, Cairo, Oman, Our objective is "to supply first step products and best service for our customers, thus we are sure you must have a margin benefit through cooperating with us". If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

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