3240 Laminate Sheet
Brand: Hongda
Materials: Epoxy Resin, Phenolic Resin
Nature Color: Yellow
Thickness: 0.3mm --- 100mm
Size: 1020mm*2020mm (Regular)
Packaging: Regular packing, Protect by Pallet
Productivity: 13000 Tons per year
Transportation: Ocean, Land, Air
Payment:T/T
MOQ:500KG
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
3240 Laminate Sheet Production Description
3240 Laminate Sheet is a hard and dense material which is made by applying heat and pressure to layers of alkali-free woven glass cloth with epoxy and phenolic resin. It has wide operating temperature range, high dielectric constant, high strength, and wear resistance. The material can resist to aggressive environments and suitable for mechanical processing.
Different Grade of 3240 Board
There are three different grade of Glass Yellow 3240 Laminate Sheet, and we separate them by using A, B and C.
Grade A: using the whole shaft of alkali-free glass fiber cloth into epoxy phenolic resin, then bake and heat press. It has good mechanical and dielectric properties with thermos ability and moisture resistivity. The property of 3240 board is a little bit worse than FR4 board.
Grade B: Grade B is similar to Grade A, but grade B has lower properties than grade A. However, grade B is cheaper than grade A and has good practicability. Grade B is more common in the market.
Grade C: dip the offcut of glass fiber board into epoxy phenolic resin, then process it. The surface of grade C is not flat with bad thickness tolerance. If customers have high requirement, they should choose to buy grade A or B.
1. Test Jig
2. Fixture PCB Testing Jig
3. Insulation Plate
4. Switch insulation Plate
5. Polish Gear
6. Mould in Cloth and Shoes
7. Insulation Part of Bakelite Sheet
8. Lithium Battery Pack
Technical Data for 3240 Grade A
|
NO |
TEST ITEMS |
UNIT |
TEST RESULT |
TEST METHOD |
|
1 |
Bending Strength Perpendicular to Laminations (A) |
MPa |
484 |
GB/T 1303.4-2009 |
|
2 |
Bending Strength Perpendicular to Laminations (B) |
MPa |
338 |
|
|
3 |
Apparent Bending Elastic Modulus (A) |
MPa |
2.19*104 |
|
|
4 |
Apparent Bending Elastic Modulus (B) |
MPa |
1.99*104 |
|
|
5 |
Compressive Strength Perpendicular to Laminations compressive |
MPa |
401 |
|
|
6 |
Parallel layer shear strength |
MPa |
31.5 |
|
|
7 |
Tensile Strength (A) |
MPa |
368 |
|
|
8 |
Tensile Strength (B) |
MPa |
187 |
|
|
9 |
Parallel Layer Impact Strength (Simply Supported Beam, Gap) |
KJ/m² |
59.4 |
|
|
10 |
Vertical Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ25mm/φ75mm cylinder electrode system) |
kV/mm |
15.5 |
|
|
11 |
Parallel Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ130mm/φ130mm flat plate electrode system) |
KV |
90.0 |
|
|
12 |
Relative Permittivity (50Hz) |
- |
4.90 |
|
|
13 |
Insulation Resistance after Soaking |
Ω |
4.1*1013 |
|
|
14 |
Density |
g/cm3 |
1.96 |
|
|
15 |
Flammability |
Grade |
V-0 |
|
|
16 |
Water Absorption |
mg |
39.9 |
|
|
REMARK: 1. NO.5 the sample height is (10.32~10.39) mm; 2. NO.10 the sample thickness is (2.09~2.11) mm; 3. NO.11 the sample size is (100.01~100.07) mm*(25.20~25.31) mm*(5.06~5.20) mm thickness, the electrode spacing is (25.20~25.31) mm; 4. NO.15 the sample size is (18.87~12.99) mm*(4.23~4.28) mm; 5. NO.16 the sample size is (50.39~50.51)mm*(50.37~50.50)mm * (4.24~4.27) mm . |
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Technical Data for 3240 GradeB
|
NO |
TEST ITEMS |
UNIT |
TEST RESULT |
TEST METHOD |
|
|
1 |
Density |
g/cm3 |
2.07 |
GB/T 1303.2-2009 |
|
|
2 |
Water Absorption |
mg |
6.0 |
||
|
3 |
Bending Strength Perpendicular to Laminations |
A |
MPa |
203 |
|
|
B |
192 |
||||
|
4 |
Modulus of Elasticity in Flexure |
A |
MPa |
2.12*104 |
|
|
B |
2.38*104 |
||||
|
5 |
Parallel Layer Impact Strength (Simply Supported Beam, Gap) |
A |
KJ/m² |
47.4 |
|
|
B |
35.8 |
||||
|
6 |
Parallel Layer Shear Strength |
A |
MPa |
49.8 |
|
|
B |
52.7 |
||||
|
7 |
Tensile Strength |
A |
MPa |
147 |
|
|
B |
121 |
||||
|
8 |
Compressive Strength Perpendicular to Laminations compressive |
MPa |
438 |
||
|
9 |
Insulation Resistance after Soaking |
Ω |
2.0*109 |
||
|
10 |
Vertical Layer Breakdown Voltage (90℃ + 2℃ oil, 20s step by step boost) |
MV/m |
8.6 |
||
|
11 |
Parallel Layer Breakdown Voltage (90℃ + 2℃ oil, 20s step by step boost) |
kV |
28.0 |
||
|
12 |
Flammability |
- |
V-1 |
||
|
13 |
Deflection Temperature under Load |
A |
℃ |
＞140 |
|
|
B |
＞140 |
||||
|
14 |
Adhesive Strength |
N |
6324 |
GB/T 1303.6-2009 |
|
|
REMARK: 1. NO.2 the sample size is 50mm*50mm*50mm; 2. NO.8 the sample height is (9.05~9.56) mm; 3. NO.10 the sample thickness is (2.91~2.95)mm; 4. NO.11 the sample size is 100.00mm*5.08mm*24.10mm; |
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Factory
J&Q Insulation Material Co., Ltd is a foreign trade company controlled by Hebei JingHong Electronic Technology Co., Ltd., which is responsible for the export business of Hebei JingHong Electronic Technology Co., Ltd. The new factory of Hebei JingHong Electronics Co., Ltd. will be officially put into production in October 2022. Mainly produce FR4 sheet, 3240 epoxy sheet, Bakelite sheet, and 3026 phenolic cotton sheet. The total annual output of the new and old two factory reaches 43,000 tons, which will be the largest insulation board factory in China.
One of our greatest advantage is the orders which are directly from us has the priority to produce first. Also, we have our own logistics company, so it can provide safe and fast service to you. What we are trying to do is providing our customers one-stop service from production to delivery.
Our strength
1. The annual production capacity of the factory is 43,000 tons, which is one of the largest insulation board manufacturers in China
2. Fully automated production workshop, product quality is stable
3. We have more than 20 years of experience in producing and selling insulating sheet, Cooperate with a number of domestic and foreign trading companies for many years.
4. Professional foreign trade team can provide perfect services
5. Have our own logistics company, provide one-stop service
Certification
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Packaging and Shipping
Regular packing, Protect by Pallet
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