POLYCAST 8500
Single-Component lightweight Casting COMPOUND
DESCRIPTION
PC 8500 is a lightweight epoxy coated material designed for casting & potting. It is a single component, syntactic foam which is formulated so there is no advance preparation before use. Its porosity helps provide a structural matrix for added liquid resins. This structure provides greater physical properties while maintaining a specific gravity less than water.
| PROPERTIES |
|
| Color , visual ................. |
Pink |
| Appearance................. |
Dry powder |
| Hardness, ASTM-D-2240 (Durometer)..... |
Shore A 45 (±10) |
| Specific gravity............... |
0.17 |
| Compressive Strength.............. |
115 psi |
| Dielectric Strength, ASTM-D-149 (volts/mil).... |
41 |
| Thermal Conductivity (cal x cm2/sec x cm °C).. |
2.1 x 10-4 |
| Dielectric Constant, ASTM-D-150 ........ |
3.8 |
| Dissipation Factor, ASTM-D-150........ |
0.2 |
| Volume Resistivity, ASTM-D-257 (ohm-cm)..... |
1 x 1015 |
| Pot Life (125°C) min............. |
55 |
| Shelf Life @ 70o F ............. |
6 months |
APPLICATION INSTRUCTIONS
PC 8500 handles like dry powder. Fill around the parts to be potted. Any lumps may easily be broken. Vibration may be used to help fill small voids in the material.
CURE SCHEDULE
Standard cure: 3-4 hrs. @ 125°C.
Alternate method: 1 hr. @ 150°C.
All data given in this bulletin is based on our own research and research of others. They are believed to be accurate, however, no guarantee of accuracy is made. Product described is sold without warranty, except conformity to specifications, and on condition that purchasers shall determine suitability for their particular purpose. |