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Model No.: 3240
Application: Insulators
Type: Insulation Sheet
Material: Fiberglass
Thermal Rating: B 130
Color: Yellow
Transportation: Ocean,Land
Place of Origin: China
Supply Ability: 500 tons / year
Port: Dalian Port
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA
3240 Epoxy Fiberglass Laminate Sheet Insulation Material
Epoxy resin is an organic macromolecule compound with two or more epoxy groups in the molecule. 3240 Epoxy Board is made of electrical glass cloth impregnated with epoxy resin, dried and hot pressed.
Epoxy board produced by domestic general materials, we can call it 3240 epoxy board, while the epoxy board produced by foreign production materials, we can call it imported Insulation Board, also called FR4 epoxy board.
3240 epoxy phenolic resin fiberglass cloth laminate, the glue used is epoxy resin with phenolic resin as curing agent. The temperature resistance is generally 155 degrees. It has good machinability, also very suitable for use in transformers and transformer oils. The density generally does not exceed the national standard: 1.9. But now there are many manufacturers in China, in order to save costs in the production process, adding in fillers, such as talcum powder. Its density is greatly increased. But it also greatly reduces its electrical performance, can only be applied to general insulation engineering.
Skills requirement
1. The appearance surface should be flat and clean. No bubble impurities and obvious defects are allowed, and slight scratches are allowed. The edges should be cut neatly and there should be no delamination or cracks on the end faces.
2. Nominal thickness and deviation
Nominal thickness and deviation unit:mm
Nominal thickness | deviation | Nominal thickness | deviation | Nominal thickness | deviation |
0.4 | ±0.10 | 3.0 | ±0.37 | 20 | ±1.30 |
0.5 | ±0.12 | 4.0 | ±0.45 | 30 | ±1.70 |
0.6 | ±0.13 | 5.0 | ±0.52 | 40 | ±2.10 |
0.8 | ±0.16 | 6.0 | ±0.60 | 50 | ±2.45 |
1.0 | ±0.18 | 8.0 | ±0.72 | 60 | - |
1.5 | ±0.24 | 10.0 | ±0.82 | 80 | - |
2.0 | ±0.28 | 12.0 | ±1.02 | 90 | - |
2.5 | ±0.33 | 16.0 | ±1.12 | 100 | - |
3. Product specifications:
1500mm * 3000mm * 5mm—100mm
2700mm * 2700mm * 5mm—100mm
4000mm * 2000mm * 5mm—100mm
Physical mechanical and dielectric properties
Performance | unit | standard value | |
density | g/cm3 | 1.7-1.9 | |
Adhesive strength | N | ≥5600 | |
Vertical layer bending strength | Vertical | Mpa | ≥353 |
Horizontal | ≥294 | ||
Stamping strength (simple supported beam method)1.2-10mm | Vertical | kj/m2 | ≥60 |
Horizontal | ≥50 | ||
Parallel layer punching strength (cantilever beam method) | kj/m2 | ≥54 | |
Tensile Strength | Vertical | Mpa | ≥314 |
Horizontal | ≥216 | ||
Thermal stability | ℃ | 200 | |
Water absorption | % | ≤0.8 | |
Vertical layer direction dielectric strength temperature 90 ± 2 ℃ in oil | Thickness0.5-1mm | MV/m | ≥22 |
Thickness1.1-3mm | ≥20 | ||
Parallel layer breakdown voltage temperature 90 ± 2 ℃ in oil | KV | ≥30 | |
Parallel layer insulation resistance | Normal state | MΩ | ≥1×104 |
After soaking | ≥1×102 | ||
Surface resistivity | Normal state | - | ≥1×107 |
After soaking | ≥1×105 |
Company Profile
Yingkou Dongyuan Electrical Insulation Wide Plate Co., Ltd. is located in China (Liaoning) Free Trade Pilot Zone. The factory covers an area of 17,000 square meters, with more than 100 employees and fixed assets of 40 million yuan. The company's main products are: Electrical Laminated Wood, insulation boards (3240 epoxy board, 3021 cardboard, 3025 Cotton Cloth Board, 9309 low dielectric loss cardboard Etc.), Laminated Wood insulation parts (compression rings, clips, round rods, screw nuts, pads, pallets, support frames, fasteners and other finished products in various shapes) and other insulating materials. It owns 32 sets of main production equipment including 8000 ton press, 6000 ton press, 5000 ton press, gluing machine, etc. After many years of hard work, the company has completed the original accumulation and the equipment renovation, and has newly developed the nation's largest board ( 4000mm × 2000mm, 3000mm × 1500mm, 2700mm × 2700mm ...), filling the domestic gap and setting a record for the large format of the insulation board. Its products have passed the national ISO quality management system certification and have the only large-scale all-metal detector in China. The products are applied to various power distribution systems and components such as transformers, switch cabinets, and motors. The company adheres to the credibility of the first, quality first, continues to work on the development of insulation materials products, consolidate the leading position in the market, and strive to provide users with the best service.
Product Categories : Insulation Board > Epoxy Board
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.