Accurate Plastics ~ Sheet Comparative Data Chart
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THERMOSET INDUSTRIAL LAMINATE PROPERTIES Engineering Values (MIN unless noted) |
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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-3 |
12 PBM |
11 PBG |
10 PBE |
16, 14 FBM/FBG |
15, 13 FBI/FBE |