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	Amber
Viscosity, ASTM-D-2393 (c.p.s. @ 25^o C)..	7,500	500
Specific Gravity .............	1.55	0.97
Mix Ratio (by weight)	100:6-7
Mixed Viscosity, ASTM-D-2393 (@ 25^o C)	5-8000
Pot Life @ 25^OC (100 grams) .....	60 minutes
Shelf Life @ 70^o F ..........	12 months minimum

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.