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PC-220

PC-220

ELECTRICALLY CONDUCTIVE EPOXY COMPOUND

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P.C.220 is a 100% solids epoxy system. It is highly filled with silver and has excellent conductive properties. It has an easy mix ratio of one part base to one part hardener. It has excellent bond to most metals, ceramics, glass, and various plastics

Properties Uncured  (A&B {PC90}) Visual

Color Neutral
Amber
Viscosity, ASTM-D-2393 (c.p.s. @ 25o C) 7,500
500

Specific Gravity
1.55
0.97
Mix Ratio (by weight)  100:6-7

Mixed Viscosity, ASTM-D-2393 (@ 25o C)
5-8000

Pot Life @ 25OC (100 grams)
60 minutes

Shelf Life @ 70o 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 Instruction

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.