Search
the marketplace
through 230,000 Chemicals and Raw Ingredients
through 8,000+ Supplier owned storefronts

Cast-Coat Inc. CC3-300

Cast-Coat Inc. CC3-300 is a high viscosity, alumina filled casting resin offering high thermal conductivity, high heat distortion, excellent electrical insulation, low coefficient of thermal expansion and extremely low shrinkage during cure. It will withstand the most rugged tests of temperature, chemical attack and voltage shock, and is easier to fabricate than metals or ceramics at a lower cost. Supplied as a pourable resin, it cures to a rigid, opaque plastic at room temperature or with heat. The thermal coefficient of expansion is closely matched to aluminum. CC3-300 has excellent adhesion to a wide variety of materials, i.e., metal, plastic, glass, ceramic. To reduce viscosity, warm the resin between 100°F to 150°F prior to adding the hardener.

Product Type: Potting Compound

Application Area: Capacitor Bushings, Power Transformers

Compatible Substrates & Surfaces: Ceramic, Glass, Metal, Plastics

Cure Method: Air Dry, Heat Cure

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Product Type
Potting Compound
Technologies
Ready-to-Use Products
Product Families
Ready-to-Use Products — Adhesives & Sealants
Encapsulants

Features & Benefits

Ready-to-Use Product Features
Chemical Resistant,
Electrically Insulating,
Good Thermal Conductivity,
High Heat Distortion Temperature,
High Viscosity,
Low Shrinkage,
Low Thermal Expansion

Applications & Uses

Markets
Electrical & Electronics
Applications
Electrical & Electronics — Packaging & Assembly
Potting Compounds
Application Area
Capacitor Bushings,
Power Transformers
Compatible Substrates & Surfaces
Ceramic,
Glass,
Metal,
Plastics
Cure Method
Air Dry,
Heat Cure
Suggested Applications
  • Large Castings: CC3-300 is ideal for pouring large castings such as capacitor bushings, transformers or any unit where heat dissipation is important. Low shrinkage and low exotherm are two of the reasons why a two hundred pound casting can be made in a single pour.
  • Small Castings: Even the intricate circuitry of a power supply can be encapsulated, void free with CC3-300, if both the amplifier and resin are preheated to 150’ F prior to filling. We recommend evacuating the catalyzed resin before and after filling the unit.
Room Temperature Cure
  • H-1 Hardener: Cures overnight at room temperature or 2 hrs at 65°C. Do not heat cure if the mass exceeds 200 grams.
  • H-18 Hardener: Cures overnight at room temperature or 2 hrs at 65°C. Do not heat cure if the mass exceeds 200 grams.
  • H-10LV Hardener: Cures overnight at room temperature or 3 hrs at 65°C.
Mixing Instructions

Mix CC3-300 thoroughly in it’s shipping container to insure a uniform consistency. Weigh out the desired amount of resin in a clean container. Add the hardener accurately by weight in the proper proportion as specified above. (ie. 3.9 grams of H-1 Hardener and 100 grams of CC3-300 for a total mix of 103.9 grams) Mix thoroughly. Use in a well ventilated area and avoid contact with eyes and skin.

Properties

Physical & Electrical Properties
ValueUnitsTest Method / Conditions
Coefficient of Thermal Expansion22 x 10^(-6)in/in/’C-
Compressive Strength (25°C)29050.0psi-
Dielectric Constant (25°C, 100 KC)6.0--
Dielectric Strength600.0volts/mil-
Dissapation Factor (25°C, 100 KC)0.02--
Heat Distortion155.0°C-
Izod Impact (of Notch)0.25ft lbs/in-
Linear Shrinkage0.0015in/in-
Service Temperature (Continuous)-65 - 185°C-
Specific Gravity (Uncatalyzed, 25°C)2.31--
Specific Gravity (Uncatalyzed, 25°C)2.07--
Tensile Strength (25°C)10500.0psi-
Thermal Conductivity1.7W/mK-
Viscosity (Uncatalyzed, 25°C)120400.0cps-
Viscosity (Uncatalyzed, 25°C)4100.0cps-
Volume Resistivity (25°C)1016.0ohm-cm-
Water Absorption (7 days, 25°C)0.18%-

Technical Details & Test Data

Choice of Hardeners
  • H-1 Hardener: Rigid, good dimensional stability, fast cure.
  • H-18 Hardener: Resilient, excellent mechanical and thermal shock, low viscosity, good air release, fast cure.
  • H-10LV 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 Hardener 3.9 2 hrs. 24 hrs. 2 hrs. - - -
H-18 Hardener 8.1 3 hrs. 24 hrs. 2 hrs. - - -
H-10LV Hardener 9 (rigid) 3 hrs. 24 hrs. 3 hrs. - - -
H-10LV Hardener 24 (semi-flex) 3 hrs. 24 hrs. 3 hrs. - - -
H-10LV Hardener 38 (flexible) 3 hrs. 24 hrs. 3 hrs. - - -