Wholesale Dealers of Thermal Insulation Board - 347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F) – Xinxing
Wholesale Dealers of Thermal Insulation Board - 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:Class F,155℃
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 | |||
01 | Density | g/cm³ | 1.8-2.1 | |||
02 | Water absorption | % | <0.5 | |||
03 | Vertical bending strength | Normal | MPa | ≥400 | ||
155±2℃ | ≥250 | |||||
04 | Impact strength(Charpy type) | No Gap | Lengthways | KJ/m² | ≥129 | |
Lateral | ≥77 | |||||
05 | compression strength | Vertical | MPa | ≥300 | ||
Parallel | ≥200 | |||||
06 | Tensile strength | Lenthways | MPa | ≥240 | ||
Lateral | ≥180 | |||||
07 | Bond strength | N | ≥6800 | |||
08 | Vertical electric strength(in oil of 90℃±2℃ 1min) | 1mm | MV/m | ≥14.2 | ||
2mm | ||||||
≥12.4 | ||||||
3mm | ||||||
≥11.5 | ||||||
09 | Parallel breakdown voltage(in oil of 90℃±2℃) | KV | ≥45 | |||
10 | Relative dielectric constant(50Hz) | - | ≤5.5 | |||
11 | dielectric dissipation factor(50Hz) | - | ≤0.04 | |||
12 | Parallel insulation resistance | Normal | MΩ | ≥1.0×106 | ||
After soaking for 24 hours | ≥1.0×104 | |||||
13 | Surface/volumn insulation resistance | Normal | MΩ | ≥1.0×106 | ||
After soaking for 24 hours | ≥1.0×104 | |||||
155±2℃ | ≥1.0×104 | |||||
Fire retardant(UL-94) | V-0 |
Product detail pictures:

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We believe in: Innovation is our soul and spirit. Quality is our life. Customer need is our God for Wholesale Dealers of Thermal Insulation Board - 347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F) – Xinxing, The product will supply to all over the world, such as: Slovakia, Bhutan, Italy, Taking the core concept of "to be the Responsible". We will redound up on society for high quality products and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.

The sales person is professional and responsible, warm and polite, we had a pleasant conversation and no language barriers on communication.
