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Prior Plastic Co.,LTD.
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Customized Fr4 Sheet Parts, Plastic Machined Parts

Prior Plastic Co.,LTD.

Customized Fr4 Sheet Parts, Plastic Machined Parts

Place of Origin : China

Brand Name : PRIOR

Certification : SGS,RoHS

Model Number : Epoxy-1

Thickness : 0.5~100mm

Size : 1020x1220mm

Price : 3~4USD/KG

Packaging Details : By plastic or wooden pallet

Delivery Time : 7~10 working days

Payment Terms : T/T,Western Union,Paypal

Supply Ability : 10 tons/week

MOQ : 300KGS

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Customized Fr4 Sheet Parts, Plastic Machined Parts


In plastic field, many suppliers know the material, but they know little about the machining. Some other suppliers know about the machining, but they don't know the material properties. In the two situations, problems happen frequently.
If you have same problem, come to PRIOR PLASTIC, we solve the problem for you perfectly. Experienced both in material and machining, customers are very glad to cooperate with us.


The machining process include below
1.Turning: For parts which have high surface requirement, wide-head cutters are better. When processing thin walled and soft material, cutters like knife are recommended.
2. Milling: When milling the surface, end-milling is more cost-effective than circular milling. For circular and forming cutter, it should have less than two cutter edges. In this case, the tolerance caused due to the edge vibration can be lowered to the minimum.
3. Sawing: Thin saws are usually used to saw thick parts to avoid the heating caused by friction. It would be better to use sharp and big sawblade.
4. Drilling: When drilling the solid materials, make sure to use sharp drill, otherwise the increasing pressure during drilling will cause material cracks.


The common document files accepted are : *.pdf/*.dwg/*.IGS/*.step/*.prt/*.sldprt Just send the drawings to us, we will handle the rest for you.

Technical Data Sheet
Technical DataMethod of VerificationUnit3240
I.Physical Properties
DensityISO 1183g/cm32.0~2.1
Water absorption 24hrsISO 62%0.05~0.15
III.Thermal Properties
Max. service temperature -Short termISO 75-2ºC/
Max. service temperature - Long termISO 75-2ºC130~140
Coefficient of Thermal Expansion-LWISO 11359m/K/
Coefficient of Thermal Expansion-CWISO 11359m/K/
Thermal ConductivityISO 11359W/(m·K)2.2~2.5
FlammabilityUL 94ClassV-1
II.Mechanical Properties
Tensile strength at yieldISO 527-2MPa≥220
Tensile strength at breakISO 527-2Mpa/
Hardness RockwellDIN 53505120-125
Izod impact strengthISO 179kJ/m2≥33
Bending StrengthISO 527-2Mpa/
Flexural strength-LWISO 179Mpa≥314
Flexural strength-CWISO 179Mpa≥216
Adhesive StrengthISO 179N5600
Compression strength-LWISO 179Mpa≥350
Compression strength-CWISO 179Mpa≥147
IV.Electrical Properties
Volume resistivelyIEC 60093Ohm (Ω) * cm1.3x1014
Surface resisivelyIEC 60093Ohm (Ω)3.5x1012
Electric strength- LWVDE 0303kV/mm≥14.2
Breakdown Voltage-CWVDE 0303kV>34
Relative dielectric coefficientVDE 0303/≤4.7
Dielectric Loss muduleVDE 030350HZ≤0.04
Arc resistanceVDE 0303S/
NOTE: 1 g/cm3 = 1,000 kg/m3, 1 Mpa = 1 N/mm2, 1kV/mm = 1 MV/m


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