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Acculam ~ Sheet Comparative Data Chart

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
 
50,000
35,000

50,000
35,000

50,000
35,000

50,000
35,000

50,000
35,000

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

60,000
35,000

60,000
35,000

60,000
35,000

50,000
35,000

50k/70k
25,000

25,000
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

50,000
35,000

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 1,500 1,700 650 850 850 700 1,500 1200 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
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