Product Details
We not only produce insulating boards, but also can cut them into various sizes and process them into insulating parts of various shapes for customers. Our company has different types of CNC machines and grinding machines, which can make various high-precision insulating parts.
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FR-4 epoxy sheet : Made up of epoxy resin and electronic glass fiber glass cloth,by baking and heat pressing. Regarding processing technic, it is superior to other resinous glass fibre cloth substrate such as 3240 Fiberglass epoxy sheet, and thus more expensive than 3240 epoxy sheet. This product is mainly used for the base board of the Copper Clad Laminate. Applications: Used in mechanical, electrical and electronic insulation structure parts. Used in Chemical machine parts. Used in General machines parts and gear, generators, Pads, base, baffle,Generator, transformer, fixture, inverter, motor. Color:Green,Yellow,Coffee (Other colors can be customized) Thickness:0.5-60MM Size:1020*1220MM,1220*2040MM,1030*2030 Density:2-2.1 g/cm3
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FR4 sheet
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Properties
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Unit
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Grade
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FR-4,Grade A
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Flexural strength perpendicular to laminations (A: under normal conditions E-1/150: 150±5 °C . Thickness:≥1.6mm)
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≥
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Mpa
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340
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Compression strength perpendicular to laminations
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≥
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Mpa
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350
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Impact Strength parallel to laminations (Charpy,Thickness:≥5mm)
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≥
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kJ/m2
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33
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Insulation Resistance after immersion in water (D-24/23)
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≥
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Ω
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5.0×108
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Dielectric strength perpendicular to laminations (in 90±2°C transformer oil, 1 mm in thickness)
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≥
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MV/m
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11.8
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Breakdown voltage parallel to laminations (in 90±2°C transformer oil)
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≥
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KV
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35
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Permittivity (50MHz)
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≤
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—
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5.5
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Dissipation factor (50Hz)
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≤
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—
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0.035
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Water absorption (D-24/23, 3mm in thickness)
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≤
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mg
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20
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Density
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g/cm3
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2.0
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Flammability
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Class
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V-0,V-1
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Color
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—
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Natural
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Supply Ability
300000 Kilogram/Kilograms per Month epoxy fiberglass sheet
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FAQ
Q1: Are you a manufacturer or trading company?
A1: We are manufacturer and our factory is located in Zhejiang,China.
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Q2: What about the shipping methods?
A2: For samples we usually send by express or by air,and for bulk order we can delivery by sea or by train wherever it can go.
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Q4: What's your delivery time?Where is the loading port?
A4: Usually we produce within 30 days after receiving the prepayment.
Loading port:Ningbo and Shanghai,and other place in china according your requirement.
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Q5: Can I have a sample first ?
A5: We provide free samples to client check quality by freight collect, also if not our normal printing, customers have to pay sample cost first and sample cost would be deducted from the final order.
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http://www.cnholdsen.com/
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