Low cost, low Viscosity Potting & Casting Compound
DESCRIPTION
PC 125 is a 100% solids epoxy system. It is a filled, low cost, general purpose epoxy potting and casting compound. It is a room temperature cure, has good overall properties, and is also machine dispensable.
PROPERTIES - UNCURED (Part A) Part B (PC 90)
| Color , visual ......... |
Neutral |
|
| Viscosity, ASTM-D-2393 (c.p.s. @ 25o C).. |
7,500 |
|
| Specific Gravity ............. |
1.55 |
|
| Mix Ratio (by weight) |
|
| Mixed Viscosity, ASTM-D-2393 (@ 25o C) |
|
| Pot Life @ 25OC (100 grams) ..... |
|
| Shelf Life @ 70o F .......... |
|
PROPERTIES - CURED
| Hardness, ASTM-D-2240 (Durometer)....... |
Shore D 80 |
| Tensile Strength, ASTM-D-638 ....... |
11,000 psi |
| Tensile Elongation, ASTM-D-638 ...... |
2.5 % |
| Flexural Strength, ASTM-D-790......... |
14,500 psi |
| Compressive Strength........... |
12,500 psi |
| Coefficient of Thermal Expansion ...... |
48 x 10-6 |
| Heat Distortion Point............. |
105°C |
| Dielectric Strength, ASTM-D-149 (volts/mil) ... |
415 |
| Dielectric Constant, ASTM-D-150 ........ |
4.2 |
| Dissipation Factor, ASTM-D-150........ |
0.02 |
| Volume Resistivity, ASTM-D-257 (ohm-cm)..... |
9 x 1015 |
MIXING INSTRUCTIONS
Pre-mix Part A and Part B separately. Then measure out parts by weight. Mix thoroughly scraping the sides and bottom of the container. Evacuate @ 29in. Hg for void free casting. Pour into mold or cavity.
CURE SCHEDULE
Room temperature cure @75°F with full properties after 24 hours.
To accelerate cure, allow 2 hours @ room temperature, then 2 hours @ 125°F.
For higher service temperature, use Polycure 110.
