Epoxy Fr4 Sheet for Insulation Fixture

Epoxy FR4 sheet for insulation fixture

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 Data	Method of Verification	Unit	3240
I.Physical Properties
Density	ISO 1183	g/cm3	2.0~2.1
Water absorption 24hrs	ISO 62	%	0.05~0.15
III.Thermal Properties
Max. service temperature -Short term	ISO 75-2	ºC	/
Max. service temperature - Long term	ISO 75-2	ºC	130~140
Coefficient of Thermal Expansion-LW	ISO 11359	m/K	/
Coefficient of Thermal Expansion-CW	ISO 11359	m/K	/
Thermal Conductivity	ISO 11359	W/(m·K)	2.2~2.5
Flammability	UL 94	Class	V-1
II.Mechanical Properties
Tensile strength at yield	ISO 527-2	MPa	≥220
Tensile strength at break	ISO 527-2	Mpa	/
Hardness Rockwell	DIN 53505		120-125
Izod impact strength	ISO 179	kJ/m2	≥33
Bending Strength	ISO 527-2	Mpa	/
Flexural strength-LW	ISO 179	Mpa	≥314
Flexural strength-CW	ISO 179	Mpa	≥216
Adhesive Strength	ISO 179	N	5600
Compression strength-LW	ISO 179	Mpa	≥350
Compression strength-CW	ISO 179	Mpa	≥147
IV.Electrical Properties
Volume resistively	IEC 60093	Ohm (Ω) * cm	1.3x1014
Surface resisively	IEC 60093	Ohm (Ω)	3.5x1012
Electric strength- LW	VDE 0303	kV/mm	≥14.2
Breakdown Voltage-CW	VDE 0303	kV	>34
Relative dielectric coefficient	VDE 0303	/	≤4.7
Dielectric Loss mudule	VDE 0303	50HZ	≤0.04
Arc resistance	VDE 0303	S	/
NOTE: 1 g/cm3 = 1,000 kg/m3, 1 Mpa = 1 N/mm2, 1kV/mm = 1 MV/m