ET50
PRODUCT HIGHLIGHTS:
PRODUCT APPLICATIONS:
PRODUCT DESCRIPTION:
ET50 is an aluminum powder filled epoxy casting resin system
that provides service temperatures to 350° F (177°C). ET50 is most commonly
used for the construction of molds that require good heat conductivity,
outstanding durability, and that provide production run capability. The majority
of applications for ET are used in conjunction with other materials in
developing composite mold structures.
The composites approach to mold construction uses ET50 as a
binder for SC-124 Aluminum Granules. This mixture is cast behind a high
temperature surface coat, ET10 or ET15. This combination provides several
benefits. The ET10 or ET15 surface coat provides exceptional durability, and the
aluminum granule addition to the ET50 provides vastly increased heat
conductivity and reduced shrinkage. In addition this method will decrease coast.
Generally, the SC-124 Aluminum Granule is added at the rate of 60 parts by
weight to 100 parts by mixed resin and hardener. Larger amounts of aluminum
granules are added when vacuum form molds, casting molds, foam molds, and other
low pressure compression type molds.
PHYSICAL
PROPERTIES
| Hardness, Shore D ASTM D-792 |
90 |
| Specific Gravity, (gm/cc) ASTM D-2240 |
1.69 |
| Volumetric Weight, (cu.in./lb) ASTM D-792 |
17 |
| Compressive Strength, (psi) ASTM D-695 |
27,800 |
| Flexural Strength, (psi) ASTM D-790 |
11,100 |
| Flexural Modulus, (psi) ASTM D-790 |
1.06X106 |
| Tensile Strength (psi) ASTM D-638 |
8,150 |
| Shrinkage, (in./in.) ASTM D-2566 |
.002 |
| Heat Deflection Temperature, (264 psi) ASTM D-648 |
311°F (155°C) |
| Coefficient of Thermal Expansion, (in/in./°F) ASTM D-3386 |
1.9X10-5 |
HANDLING PROPERTIES
| Mixed Viscosity(cps) |
15,500 |
| Work Life@ 770F(250C) |
60 minutes |
| Demold Time@ 750-80F(240-27°C) |
16-24 hours |
this is text meant just to take up lots of space at the bottom of the page, so that if
there is only a table or something in the content part of this page, the content still
takes up the majority of the screen. if there is not any text here, then sometimes there
will be just a table here, and the left navigation bar to the left will be kinda wide...
|