Phenolic cotton laminated sheet is made of cotton cloth impregnated with phenolic resin by dry pressing,
3136 by bleaching cloth impregnated with phenolic resin laminate formed by hot pressing,having excellent electrical insulation properties,mechanical properties,thermal stability,chemical resistance.
Product Parameters:
|
ASTM
or UL
test
|
Property
|
Paper
|
Canvas
|
|
D792
|
Density (lb/in³)
(g/cm³)
|
0.049
1.35
|
0.050
1.37
|
|
D570
|
Water Absorption, 24 hrs (%)
|
2
|
2.5
|
|
D638
|
Tensile Strength (psi)
-lengthwise
-crosswise
|
15,000
12,000
|
11,000
9,000
|
|
D790
|
Flexural Strength (psi)-lengthwise
-crosswise
|
16,000
13,200
|
17,500
15,000
|
|
D790
|
Flexural Modulus (psi)-lengthwise
-crosswise
|
1,100,000
900,000
|
1,600,000
1,500,000
|
|
D256
|
IZOD Notched Impact (ft-lb/in)-
lengthwise
-crosswise
|
0.65
0.60
|
1.70
1.50
|
|
D695
|
Compressive Strength (psi)
|
32,000
|
37,000
|
|
D785
|
Hardness, Rockwell M
|
M100
|
M100
|
|
D696
|
Coefficient of Linear Thermal
Expansion
(x 10-5 in./in./°F)
-lengthwise
-crosswise
|
0.80
1.20
|
1.10
1.22
|
|
-
|
Max Operating Temp (°F / °C)
|
257 / 125
|
257 / 125
|
|
C177
|
Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)
|
2.03
7.0
|
2.03
7.0
|
|
UL94
|
Flammability Rating
|
H-B
|
H-B
|
|
D149
|
Dielectric Strength (V/mil) short
time, 1/8" thick
|
750(XX)
|
550(CE)
|
|
D150
|
Dielectric Constant at 1 MHz
|
5
|
5
|
|
D150
|
Dissipation Factor at 1 MHz
|
0.045
|
-
|
|
D495
|
Arc Resistance (sec)
|
110
|
15
|
Nominal Thickness, mm,As given in table below:
However, other thicknesses are can also be ordered.
Tolerance on Thickness:
Product Show:
Our Servies:
1.Rich Experience
Professional materials background and non-metallic materials processing experiences with more than 14 years,using in industry field like transformer,generator,electric motor,etc.
2.Provide one-stop service from raw material sheet supply to customized further processing of nonmetal insulating parts.
We can develop and produce various high standards and personalized products according to customers' requirement.
3.Pre-sales Service
We have professional sales team to offer comprehensive technical and business consultation services. Designing and fabricating targeted products according to the special requirements of clients.
4.After-sales Service
Highly inspecting equipment in every working procedure, quality comes first.
5.Our Advantage
Competitive price, Flexible payment options, Quick speed.
Always ready for supplying the best solution for your various application.
Main Application:
With high mechanical strength, Insulation, heat resistance, electrical properties and good moisture resistance properties.
Widely range of applications, for example: Suitable for using as insulating structural parts in electric equipment, such as electric generators, motors, switch board, pcb , etc.
Main Insulation Product Categories:
• Epoxy Glass Fiber cloth laminated sheet(3240/FR-4/G-10/FR-5/G-11)
• Phenolic laminated sheet
• Polyester Laminated sheets(GPO-3/UPGM 205)
• SMC/BMC/DMC Molded Parts
• Insulation Rods&Tubes
• Pultruded Profiles
• Engineering Plastics Parts
FAQ:
Q: Are you a trading company or a manufacturer ?
A: We are one of the leading manufacturers in the industry since year of 2004.
Q: How long is your delivery time?
A: Generally it is 3-7 days if the goods are in stock. Or it is 10-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How can you guarantee the quality of mass production is same with the sample sent to me before?
A: Our warehouse staff will leave another same sample as yours. The production process will be under your requirement.
Q: What is your terms of payment ?
A: Payment≤1000USD, 100% in advance. Payment≥1000USD, 30% T/T in advance ,balance before shipment.
