|
Thermoplastic type properties Fast cycle time
Excellent physical properties
Prototype and full production with the same properties 1:1 mix
ratio
4270 Typical Properties
|
PROPERTIES |
TEST METHOD |
4270 |
4272 |
4274 |
4275 |
Mix Ratio
by volume A:B |
|
100:100 |
100:100 |
100:100 |
100:100 |
Mix Ratio
by weight A:B |
|
100:85 |
100:85 |
100:85 |
100:85 |
Gel time
100 grams
@ 25°C minutes |
ASTM
D-2971 |
15+ 3 |
7+ 1 |
2+ .5 |
1+ .25 min. |
|
Color (cured) |
Visual |
Light brown / opaque |
Light brown / opaque |
Light brown / opaque |
Light brown / opaque |
|
Hardness Shore Scale |
ASTM
D-2240 |
84 D +3 |
84 D +3 |
84 D +3 |
84 D +3 |
Viscosity mixed
@ 25°C cps |
ASTM
D-4878 |
300+ 50 |
300+ 50 |
300+ 50 |
300+ 50 |
|
Heat Distortion Temperature (°C)
|
ASTM
D-648 |
90 |
90 |
90 |
90 |
4280 Typical Properties
|
PROPERTIES |
TEST
METHOD |
4280 |
4282 |
4284 |
4285 |
Mix
Ratio
by volume A:B |
|
100:100 |
100:100 |
100:100 |
100:100 |
Mix
Ratio
by weight A:B |
|
100:85 |
100:85 |
100:85 |
100:85 |
Gel time
100 grams
@ 25°C minutes |
ASTM
D-2971 |
15+ 3 |
7+ 1 |
2+ .5 |
1+ .25 min. |
| Color
(cured) |
Visual |
Light
brown / opaque |
Light brown / opaque |
Light brown / opaque |
Light brown / opaque |
| Hardness
Shore Scale |
ASTM
D-2240 |
84 D
+5 |
84 D +5 |
84 D +5 |
84 D +5 |
Viscosity mixed
@ 25°C cps |
ASTM
D-4878 |
270+
50 |
270+ 50 |
270+ 50 |
270+ 50 |
|
Heat Distortion Temperature
(°C) * |
ASTM
D-648 |
94 |
94 |
94 |
94 |
* Cured 8 hours @ 21°C, plus 16
hours at 75°C.
NOTE: The TUFFALLOY 4200 Series is very
sensitive to heat, which speeds the cure and demold time. Increasing the
mold temperature to 80-100°F will reduce these times by up to 50%.
Properties increase with heat acceleration. Izod impact and heat distortion
properties increase with heat (120°F to 170°F). The lower the temperature,
the longer the post cure (8-24 hrs).
Directions
For Use
|
