COOLTHERM 6712
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
Product Description
Circalok™ 6712 is a two-component, low-viscosity, solvent-free silicone encapsulant that cures at room temperature to form an elastomeric, stress-relieving rubber with excellent electrical insulation and high-temperature performance. It is designed for potting and encapsulating densely packed electronic components and for producing flexible molds. The material offers a typical viscosity of 7,250 cP, continuous service temperatures from -55 to 205 °C, intermittent exposure up to 300 °C, and low linear shrinkage after cure.
Key Features
- Low-viscosity, solvent-free silicone for room-temperature curing and encapsulation of densely packed assemblies.
- Outstanding electrical insulation with high dielectric strength, high volume resistivity, and stable dielectric properties.
- Wide service temperature capability with continuous operation from -55 to 205 °C and intermittent exposure up to 300 °C.
Applications / Suitable for
- Potting electronic components
- Encapsulating densely packed electronic assemblies
- Manufacturing flexible molds
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As-Supplied / Before-Processing Properties
Typical uncured properties before catalyst addition and curing.
| Property | Value | Unit | Method / Condition |
|---|---|---|---|
| Product type | Two-component silicone | — | Solvent-free encapsulant |
| Specific gravity | 1.16 | — | 25 °C |
| Viscosity | 7,250 | cP | 25 °C |
| Standard color | White | — | Black also available |
| Shelf life | 6 | months | Closed containers from shipment date |
After-Processing / Final-State Properties
Typical cured properties after catalyst addition and curing.
| Property | Value | Unit | Method / Condition |
|---|---|---|---|
| Tensile strength | 340 | psi | 25 °C |
| Elongation at yield | 180 | % | Typical |
| Hardness | 35 | Shore A | Typical |
| Linear shrinkage | 0.002 | in/in | Typical |
| Continuous service temperature | -55 to 205 | °C | Typical |
| Intermittent service temperature | -100 to 300 | °C | Typical |
| Thermal conductivity | 2.4 | BTU·in/ft²·hr·°F | Typical |
| Volume resistivity | 1 × 1014 | Ω·cm | 25 °C |
| Dielectric constant | 3.6 | — | 25 °C, 100 kHz |
| Dielectric strength | 500 | V/mil | Typical |
