GC Electronics 19-823, 19-824, 19-824-2G Specification Sheet

ELECTRONICS

PRODUCT SPECIFICATIONS SHEET

CAT NO.

19-823 GC Potting Epoxy
19-824
19-824-2G

DESCRIPTION:

A two part unfilled electronic grade epoxy encapsulant designed for small to medium sized castings. It
cures slowly at room temperature to a tough, rigid material. It has good wetting and adhesion to most
surfaces and is free flowing to penetrate voids and gives good air release. It has very good resistance to
water, acids and bases and most organic solvents. It was especially formulated to a 1:1 mix ratio.

Cure is normally achieved at room temperature within 24 hours. Cure time can be accelerated by the
application of heat. Times and temperatures from 1 hour at 150º F to 10 minutes at 225º F are typical for
small castings (less than 50 grams).

TYPICAL PROPERTIES:

All properties given are at 25°C unle ss ot herwise noted.

Color Black

Viscosity:

Part B 3,000 cps
Mixed 5,000 cps

Specific Gravity:

Part B 1.02
Mixed 1.09

Pot Life 45 – 60 minutes
Mass 100 grams

Dielectric Constant 3.5*

Dielectric Strength 410 v/mil*

Volume Resistivity 8.3 x 10 (14) ohm-cm*

Method Shore-D

PRODUCT NAME

Part A 12,000 cps

Part A 1.16

Temperature Range -40 to 300°F

Hardness 80

Linear Coefficient of Thermal Expansion (x 10 (6))/C
62*

Thermal Conductivity Btu* in/ft2 hr* F

1.8*

INSTRUCTIONS:

1. Clean and dry surfaces thoroughly.

2. Bring both components to room temperature prior to mixing. Mix 1 part of A to 1 part of B

thoroughly.

3. Allow to cure undisturbed.

4. Clean up with a suitable organic solvent such as MEK, Acetone or a Chlorinated Solvent.

MIX RATIO:

1A:1B by weight or 1A:1B by volum e .

*Asterisk denotes values considered typical to associated resin systems or extrapolated from other test
results.

Notes:

Values presented above are considered typical properties, not to be used for specification purposes.

Many epoxy resin systems are prone to crystalization as epoxy resin is a super-cooled fluid. This condition
may give the product a gritty or grainy appearance (or hazy in clear products). In extreme cases it may
appear solid and cured. Fluctuating temperatures (within 35 to 120º F) aggravate this phenomena. Products
can usually be restored by heating to 120 to 140º F with stirring. Storage at 75+/-15º F is optimum for most
products.

COMMENTS:

Can be submerged in water but not recommended for continuous water immersion.

SHELF LIFE, CLOSED CONTAINERS:

12 months