Epoxy Aerospace Syntactics Specifications

 
Mix Ratio
(by wt.)
Mix Ratio
(by vol.)
Gel Time
(min.) @ 72°F
Demold 
Time (hr.) 
@ 72°F
Hardness 
(Shore A)
Mixed Viscosity (cps)
Density
(g/cc)
Volumetric Yield
(in.3/lb.)
Shrink
(in./in.)
Compressive
Strength (psi)
Flexural
Strength (psi)
Flexural
Modulus (psi)
Tensile
Strength (psi)
     C.T.E.     
(in./in./°F)
Deflection
Temp. (°F)
Color
Epocast 1511 A/B      
100:20
–
40-60
24
–
Paste
1.25
22.2
–
10,000
–
–
–
–
–
Gray
One
component
–
–
–
–
Paste
0.50
55.4
–
2,800
–
–
–
–
–
Off White
100:14
–
15
30
–
Paste
0.70
39.5
–
6,000
–
–
–
–
–
Off White
Epocast 1617 A/B
100:20
–
60-90
7 Days
–
Paste
0.70
39.5
–
5,500
–
–
–
–
–
Off White
100:14
–
15
24
–
Paste
0.70
39.5
–
5,000
–
–
–
–
–
White
100:29
–
15
24
–
Paste
0.70
42.58
–
–
–
–
600
–
–
Brown
100:25
–
65
48
–
Paste
0.50
55.4
–
2,800
–
–
–
–
–
Light Yellow
100:50
–
70
24
–
Paste
0.48
57.67
–
3,000
–
–
–
–
–
Tan
100:8
–
120
7 Days
–
29,000
1.72
16.1
–
15,000
–
–
–
–
–
Gray
100:20
–
18
–
–
Paste
0.65
–
–
7,250
–
–
–
–
–
Off White
100:12
–
30-60
7 Days
–
Paste
0.80
34.6
–
9,500
–
–
–
–
–
Light Tan
Epocast 1670 A/B
100:20
–
60-90
48
–
Paste
0.70
39.5
–
6,500
–
–
–
–
–
Off White
ASTM
–
–
D-2471
–
D-2240
D-2393
D-792
D-792
D-2566
D-695
D-790
D-790
D-638
D-696
D-648
–