Fr4 Epoxy Fiberglass Sheet /insulation Sheet /unclad Laminate

  FR4 EPOXY GLASS    Detailed Product Description     epoxy glass fiber sheet
1.low water absorption
2.high mechanical strength
3. high temperature resistant
4.good electric pr

  epoxy glass fiber sheet
Usage:

(1)Bottom plate of PCB punching and prototyping machine,

(2)Reinforcement plate of testing fixture,

(3)Needle plate

(4)The material of Flexible Printed Circuit Board

(5)Other electronical products

Features:

(1)Low water absorption rate

(2)Hard to be deformed

(3)High mechanical strength,

(4)Good electric performance wether under the moist or dry environment, Flame retardant grade could reach 94-V0,

(5)High temperature resistant,high dielectric performance and mechanical processing performance.   Product Description         Data sheet:  

Item:	Testing method	Unit	Result
Fire Retardancy Grade:	A	--	94-V0
Flame Resistance:	C-96/20/65	°C	170-180
Voltage Resistance(penetrating)	C-96/20/65 (in 25 °C oil)	KV/mm	18
Voltage Resistance	C-96/20/65 (in 25 °C oil)	KV/mm	12
Arc Resistance	C-96/20/65	S	60-80
Permittivity(1MHZ):	C-96/20/65	--	4.0-5.0
Permittivity(1MHZ):	C-96/20/65 +D-48/50	--	4.5-5.5
Volume resistivity:	C-96/20/65  +C-96/40/95	Ω-cm	5*10^11-10^13
Surface resitance:	C-96/20/65 +C-96/40/90	Ω	5*10^11-10^12
Insulation Resistance:	C-96/20/65 +D-2/100	Ω	10^12-10^13
Conmpressive Strength(Vertical):	A	kg/mm2	29-34
Conmpressive Strength(Horizontal):	A	kg/mm2	19-24
Anti-impact intensity(Parrallellable):	A	kg-cm/cm2	7-9
Bending strength(Horizontal):	A	kg/mm2	40-50
Clevability:	A	kg	850-1000
Adhesive strength:	A	kg	700-900
Compressive strength(Horizontal):	A	kg/mm2	20-24
Water absorption rate:	E-24/50 +D-24/23	%	0.07-0.12

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