|
Rigid
Cast Shore D Urethanes cont.
| This unique group of two
component, castable polyurethane materials was developed to be run with meter
mix-dispense equipment, such as BJB's CPE-300 Machine. Some RigidCast
material systems will also process well with the Systems II™
hand-operated dispense equipment. These materials are perfect for constructing
short-run production and prototype parts. |
|
PRODUCT
|
MC-65 |
MC-145 |
MC-170 |
MC-172 |
TC-822 |
TC-855 |
| Hardness
Shore ASTM D-2240 |
65-70
A
|
45
D
|
70
D
|
70
D
|
85
D
|
82
D
|
| Mix
Ratio, By wgt. (by vol.) |
tr1100/100
(97:100)
|
100/95
(1:1)
|
60/100
(50:100)
|
75/100
(65:100)
|
100/87
(100:100)
|
100/88
(100:100)
|
| Cured
Color |
Translucent,light
amber |
Buff,Translucent |
Colorless,Translucent |
Colorless,Translucent |
Clear
Light Yellow |
Translucent
White |
| Work
Life (min.) |
1.5 |
4 |
90 |
1.5-2 |
3.5 |
3 |
| Viscosity,
(cps) ASTM D-2393 |
900 |
2,800 |
740 |
950 |
380 |
350 |
| Demold
Time (min.) |
10-15 |
60-90 |
30-60 |
30-60 |
60-120 |
1-2 |
| Notched
Izod Impact (ft-lb/in) ASTM D-256 |
N/A |
N/A |
1.9 |
2 |
1.00 |
1.23 |
| Elongation,
(%) ASTM D-638 |
320 |
290 |
35 |
55 |
7.5 |
10 |
| Flexural
Strength (psi) ASTM D-790 |
N/A |
N/A |
2,100 |
3,500 |
14,300 |
12,600 |
| Flexural
Modulus (psi) ASTM D-638 |
N/A |
N/A |
60,400 |
108,000 |
400,000 |
350,000 |
| Tensile
Strength (psi) ASTM D-638 |
800 |
3,000 |
3460 |
3,900 |
9,870 |
8,750 |
| *Shrinkage
(in/in) ASTM D-2566 |
.003 |
.0062 |
.006 |
.003 |
.0037 |
.003 |
| Deflection
Temp., °F 66 psi, ASTM D-648 |
N/A |
N/A |
1600F |
1600F |
1770F |
1500F |
*Shrinkage based on postcure
procedure
          
|
