Wholesale Price China Insulation Glass Fiber - 347/347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F) – Xinxing
Wholesale Price China Insulation Glass Fiber - 347/347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F) – Xinxing Detail:
Product Description
This product is a laminated sheet which made with processed non-alkali glass fiber cloth as the backing material, by hot pressing with grade F benzo oxazine resin. It has good mechanical and electrical properties,and flame retardant, especially has high mechanical strength retention and excellent electrical properties under high temperature.Suitable for grade F motor and electrical equipment as high quality insulation structure , has the advantage of good machinability and wide applicability in the similar products.
Features
1.Good mechanical and electrical properties;
2.High mechanical strength retention and
excellent electrical properties under high temperature;
3.Moisture resistance;
4.Heat resistance;
5.Temperature resistance:Grade F;
6.Good Machinability and wide applicability
7.Flame retardant property:UL94 V-0
Compliance With Standards
In accordance with GB/T 1303.4-2009 electrical thermosetting resin industrial hard laminates – Part 4: epoxy resin hard laminates.
Appareance: the surface should be flat, free of bubbles, pits and wrinkles, but other defects that do not affect the use are allowed, such as: scratches, indentation, stains and a few spots.The edge shall be cut neatly, and the end face shall not be delaminated and cracked.
Application
The technical data of 347F is similar to FR5,Suitable for grade F motor and electrical equipment as high quality insulation structure.
Main Performance Index
NO. | ITEM | UNIT | INDEX VALUE | |||
347 | 347F | |||||
1 | Density | g/cm³ | 1.8-2.0 | 1.8-2.0 | ||
2 | Water absorption Rate | % | ≤0.5 | ≤0.5 | ||
3 | Vertical bending strength | Normal | MPa | ≥440 | ≥400 | |
155±2℃ | ≥280 | ≥250 | ||||
4 | Compression strength | Vertical | MPa | ≥350 | ≥300 | |
Parallel | ≥260 | ≥200 | ||||
5 | Impact strength (charpy type) | Lengthway no gap | KJ/m² | ≥147 | ≥129 | |
Horizontal no gap | ≥98 | ≥77 | ||||
6 | Bonding strength | N | ≥7200 | ≥6800 | ||
7 | Tensile strength | Lengthway | MPa | ≥280 | ≥240 | |
Horizontal | ≥200 | ≥180 | ||||
8 | Vertical electric strength (in oil of 90℃±2℃) |
1mm | KV/mm | ≥14.2 | ≥14.2 | |
2mm | ≥12.4 | ≥12.4 | ||||
3mm | ≥11.5 | ≥11.5 | ||||
9 | Parallel breakdown voltage(1 min in oil of 90℃±2℃) | KV | ≥45 | ≥45 | ||
10 | Dielectric dissiption factor(50Hz) | - | ≤0.04 | ≤0.04 | ||
11 | Volumn Insulation Resistance | Normal | Ω | ≥1.0×1012 | ≥1.0×1012 | |
After soaking for 24hours | ≥1.0×1010 | ≥1.0×1010 | ||||
12 | Combustibility(UL-94) | Level | V-1 | V-0 |
Product detail pictures:

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Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs for Wholesale Price China Insulation Glass Fiber - 347/347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F) – Xinxing, The product will supply to all over the world, such as: Buenos Aires, Berlin, Armenia, We have now a good reputation for stable quality goods, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with car manufacturers, auto part buyers and the majority of colleagues both at home and abroad. We expect sincere cooperation and common development!

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