CC3-402A

GENERAL PURPOSE, THERMALLY CONDUCTIVE

UL - 94V-0, FIRE RETARDANT, POTTING COMPOUND

CC3-402A is a general purpose, fire retardant epoxy potting resin exhibiting low abrasion resistance. It is designed to be used where low viscosity and good wetting-out properties are important. Low shrinkage and good thermal shock resistance minimize stress on potted components. A choice of hardeners enable CC3-402A to be cured either at room temperature or with heat.

Even though the entire CC3-402A series offers a low percent of filler separation, it is advisable to always mix the contents in the shipping container before using.

ELECTRICAL AND PHYSICAL PROPERTIES  
  Specific Gravity: @ 25 ' C 1.45
  Viscosity: (centipoise) @ 25'C 7,500
  Thermal Conductivity: BTU/ft-hr-'F/in 8.0
  Tensile Strength: psi @ 25'C 7,200
  Compressive Strength: psi @ 25 ' C 22,700
  Izod Impact: ft. lbs / in of notch 0.8
  Coefficient of Thermal Expansion: in/in/'C x 10 31
  Heat Distortion: 'C 65
  Water Absorption: 7 days @ 25'C, % 0.20
  Volume Resistivity: ohm-cm, @ 25 ' C 10
  Glass Transition Temperature (Tg, ' C) 125
  Dielectric Constant: 100 KC, @ 25 ' C 4.2
  Dissipation Factor: 100 KC, @ 25'C 0.02
  Dielectric Strength: volts/mil 450
  Linear Shrinkage: in/in 0.004
  Service Temperature: 'C, continuous -55 to 155

(Typical properties when cured with H-7)

CHOICE OF HARDENERS

H-1 HARDENER

- rigid, good dimensional stability, fast cure.
H-7 HARDENER

- resilient, excellent mechanical and thermal shock, low viscosity,
good air release, fast cure.
H-16 HARDENER

- rigid, good low temperature, high humidity application, fast cure.
H-34 HARDENER

- resilient, excellent mechanical and thermal shock, plus high heat distortion,
long pot life.
H-lOLV HARDENER - variable hardness, excellent impact properties, long pot life.
HARDENER
PARTS BY WEIGHT
PER 100 PARTS
OF RESIN
POT LIFE
100 GRAM
25 ' C (77 ' F)
CURE TIME
25 ' C
(77 ' F)
CURE TIME
65 ' C
(149 ' F)
CURE TIME
125 ' C
(257 ' F)
H-1
7.0
1 hrs.
24 hrs.
2 hrs.
---
H-7
14.5
2 hrs.
24 hrs.
2 hrs.
---
H-16
11
26 mins.
1 hr.
30 mins.
10 mins.
H-34
10.2
4 hrs.
---
16 hrs.
3 hrs.
H-10LV
resilient ______20
3 hrs.
24 hrs.
3 hrs.
---
H-10LV
semi-flex _____43
3 hrs.
24 hrs.
3 hrs.
---
H-10LV
flexible _______65
3 hrs.
24 hrs.
3 hrs.
---

ROOM TEMPERATURE CURE

H-1 HARDENER

- Cures overnight at room temperature or 2 hours at 65'C. Do not heat cure if the mass exceeds 200 grams.
H-7 HARDENER

- Cures overnight at room temperature or 2 hours at 65'C.

H-1OLV HARDENER

- Cures overnight at room temperature or 3 hours at 65'C.

H-16 HARDENER - Cures within 1 hour at room temperature or 30 minutes at 65 ' C. Do not heat cure if the mass exceeds 100 grams.

HEAT CURE

H-34 HARDENER - Cures over night at 65'C or 3 hours at 125'C. For the best physical and electrical properties, a slow cure for 16 hours at 65'C followed by a post cure for 3 hours at 125'C is recommended.

MIXING INSTRUCTIONS

Mix CC3-402A thoroughly in its shipping container to insure a uniform consistency. Weigh out the required amount of resin in a clean container. Add the hardener accurately by weight in the proper proportion as specified above. Mix thoroughly.

Use in a well ventilated area and avoid contact with eyes and skin.

(508) 587-4502 FAX (508) 587-4514

354 WEST STREET W. BRIDGEWATER, MA 02379

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