Accurate Plastics, Inc. ~ Sheet Comparative Data Chart

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THERMOSET INDUSTRIAL LAMINATE PROPERTIES Engineering Values (MIN unless noted)
Properties	Nema Grades reinforcements resin binders	G10, FR4 glass cloth epoxy	G10 glass cloth non FR epoxy	G11, FR5 glass cloth epoxy HT	G11 glass cloth non FR epoxy HT	G3 glass cloth phenolic	G5, G9 glass cloth melamine	G7 glass cloth silicone	GPO 1 glass mat polyester	GPO 3 glass mat polyester	X paper phenolic	XX paper phenolic	XXX paper phenolic	C, CE canvas phenolic	L, LE linen phenolic
Tensile Strength lengthwise, PSI crosswise, PSI		40,000 35,000	40,000 35,000	40,000 35,000	40,000 35,000	23,000 20,000	37,000 30,000	23,000 18,000	8,000 ----	8,000 ----	20,000 16,000	16,000 13,000	15,000 12,000	9,000 7,000	12,500 8,750
Compressive Strength flatwise, PSI edgewise, PSI		60,000 35,000	68,000 35,000	60,000 35,000	60,000 35,000	50,000 17,500	70,000 25,000	45,000 14,000	30,000 ----	30,000 ----	36,000 19,000	34,000 23,000	32,000 25,500	39,000 24,500	37,000 25,000
Flexural Strength - .125" lengthwise, PSI crosswise, PSI		55,000 45,000	55,000 45,000	55,000 45,000	55,000 45,000	20,000 18,000	55,000 35,000	20,000 18,000	18,000 ----	18,000 ----	25,000 22,000	15,000 14,000	13,500 11,800	17,000 16,000	16,500 14,000
Modulus of Elasticity - Flexural lengthwise, kPSI crosswise, kPSI		2,700 2,200	2,700 2,200	2,800 2,300	2,800 2,300	1,500 1,200	2,500 2,200	1,400 1,200	1,200 1,000	1,200 1,000	1,800 1,300	1,400 1,100	1,300 1,100	1,000 900	1,000 850
IZOD Impact lengthwise, ft-lb/in of notch crosswise, ft-lb/in of notch		7.0 5.5	7.0 5.5	7.0 5.5	7.0 5.5	6.5 5.5	7.0 5.5	6.5 5.5	8 ----	8 ----	0.55 0.50	0.40 0.35	0.40 0.35	2.1 / 1.6 1.9 / 1.4	1.35 /1.25 1.1/ 1.0
Rockwell Hardness M scale		110	111	114	112	100	120	100	100	100	110	105	110	104	105
Specific Gravity		1.85	1.80	1.85	1.80	1.65	1.90	1.68	1.80	1.85	1.36	1.34	1.32	1.36	1.34
Bond Strength, in lbs.		2,000	2,000	1,600	1,600	850	1,700	650	850	850	700	800	950	1,800	1,600
Coefficient of Thermal Expansion cm/cm-°C X 10^-5		1.0	0.9	1.0	0.9	1.8	1.0	1.0	2.0	2.0	2.0	2.0	2.0	2.0	2.0
Water Absorption .062" thick, % per 24 hrs .125" thick, % per 24 hrs .500" thick, % per 24 hrs		0.25 0.15 0.10	0.25 0.15 0.10	0.25 0.15 0.10	0.25 0.15 0.10	2.70 2.00 1.50	0.80 0.70 0.40	0.55 0.35 0.20	1.00 0.70 0.35	0.60 0.50 0.25	6.00 3.30 1.10	2.00 1.30 0.55	1.40 0.95 0.45	4.4 / 2.2 2.5 / 1.6 1.2 / .75	2.5 / 1.95 1.6 / 1.3 0.9 / 0.7
Dielectric Strength, volt/mil perpendicular to laminations; Step by Step .062" thick .125" thick		450 350	450 350	450 350	450 350	500 450	350 275	350 250	370 ----	400 ----	500 360	500 360	450 320	300 220	300 220
Dissipation Factor condition A, 1 megacycle-max		0.025	0.025	0.025	0.025	--	0.017	0.003	0.03	0.03	----	0.045	0.038	----	0.055
Dielectric Constant condition A, 1 megacycle-max		5.2	5.2	5.2	5.2	----	7.80/7.20	4.2	4.3	4.3	----	----	----	----	----
Insulation Resistance Megaohms at Condition C		200,000	200,000	200,000	200,000	----	10,000	100,000	----	----	----	60	1000	----	----
Arc Resistance - Sec.		----	----	----	----	----	180	180	100	150	----	----	----	----	----
Temp Index .062" and over Electrical - °C Mechanical - °C		130 140	130 140	170 180	170 180	140 170	--- 140	170 220		120 140	130 130	140 140	140 140	115 125	115 125
Mil-I-24768 MIL - Type		27 GEE-F	2 GEE	28 GEB-F	3 GEB	18 GPG	8 / 1 GMG/GME	17 GSG	4 GPO N-1	6 GPO N-2	12 PBM	11 PBG	10 PBE	16, 14 FBM/FBG	15, 13 FBI/FBE

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