Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Product Features
Thermally conductive potting material that can be used with several curing agents to offer a wide variety of properties. EC-1850FT-LV is a lower viscosity version of EC-1850FT.
Applications & Uses
- Markets
- Applications
- Product Applications
It is useful for potting and encapsulating densely packaged power supplies and heat generating components, integrated circuits, power and operational amplifiers, transformers and many types of semiconductors.
- Instruction for Use
The individual components containing fillers should be stirred or agitated without introducing excessive air before use to ensure that all fillers are properly dispersed. To obtain the best cured properties; accurate proportioning and thorough mixing are essential.
Mix contents thoroughly each time before removing material. To each 100 grams of Epoxicast-1850FT, add appropriate amount of Hardener of your choice and mix it well preferably using a mechanical mixer. Vacuum degasses for about five minutes to remove any dissolved or entrapped air. Proceed with the bonding application and cure as recommended.
- Industrial Usage
These materials are intended for industrial use only, and the practices of good housekeeping, safety and cleanliness should be followed before, during and after use.
Properties
- Color
- Typical Properties
- Product Properties
Hardener DOT/IATA Shipment EH-21LP (HAZMAT) EH-22 (NON-HAZMAT) EH-26 (HAZMAT UN2922 Special Box required)
Mix ratio by weight, phr 7.5 6.5 7.5 Mixed Viscosity at 25°C, cp 5000-6000 50,000- 6,000 8,000-12,000 Pot life at 25°C (500 gram) 60-90 min 30-50 min >4 hr Recommended Cure Gel@RT+ 2hr/70°C Gel @RT+ 2hr/70°C 2 hr/100°C+ 2 hr/150°C
Alternate Cure 24-48 hr/25°C 24-48 hr/25°C 2-4 hr/125°C Operating Temperature -40°C to 130°C 40°C to 120°C 40°C to 160C Specific Gravity 2.2 2.2 2.2 Hardness, Shore D 90 90 92 Lap shear strength to aluminum, psi 2700 2700 2600 Linear Shrinkage (%) 0.012 0.012 0.011 %Water Absorption (24 hr immersion at RT) 0.02 0.02 0.02 Thermal Conductivity, 1.4 1.5 140 Glass Transition 85 85 143 Coefficient of Thermal Expansion, 10/°C (From 55°C to 25C) 28 28 22 Flexural Strength, psi 14,300 14,300 14,500 Flexural Modulus, psi 1x10^6 1x10^6 2x10^6 Dielectric Strength, Volts/mil 430 430 430 Dielectric Constant at 1 kHz 5.9 5.9 5.8 Dissipation Factor at 1 kHz 0.01 0.01 0.01 Volume Resistivity, ohm-cm 8x10^15 8x10^15 2x10^15
| Value | Units | Test Method / Conditions | |
| Mix Ratio by Weight | 3.5 | phr | — |
| Mixed Viscocity (at 25°C) | 50,000 - 60,000 | cPs | — |
| Pot Life (at 25°C, 500g) | 40 - 60 | minutes | — |
| Recommended Cure (at 70°C) | 2 | hours | — |
| Alternate Cure (at 25°C) | 24 - 48 | hours | — |
| Operating Temperature | 40 to 130 | °C | — |
| Specific Gravity | 2.3 | — | — |
| Hardness | 90 | Shore D | — |
| Lap Shear Strength to Aluminum | 2400 | psi | — |
| Linear Shrinkage | 0.013 | % | — |
| Water Absorption (24 hr immersion at Room Temperature) | 0.03 | % | — |
| Thermal Conductivity | 1.53 | W/m °K | ASTM D5470 |
| Glass Transition Temperature (Tg) | 86 | °C | — |
| Coefficient of Thermal Expansion (55°C to 25°C) | 26 | 10^-6/°C | — |
| Flexural Strength | 14700 | psi | — |
| Flexural Modulus | 1x10^14 | psi | — |
| Dielectric Strength | 430 | Volts/mil | — |
| Dielectric Constant (at 1 kHz) | 5.8 | — | — |
| Dissipation Factor (at 1 kHz) | 0.01 | — | — |
| Volume Resistivity | 2x10^5 | Ω-cm | — |
Safety & Health
- Warning
Although the system contains low volatility materials, care should be taken in handling. Adequate ventilation of workplace and ovens is essential. These materials may cause injury to the skin following prolonged or repeated contact and dermatitis in susceptible individuals. In case of skin contact, wash thoroughly with soap and water. For eyes, flush immediately with plenty of water for at least 10 minutes and seek medical attention.
Storage & Handling
- Shelf Life
The shelf life of these materials is greater than one year when stored in unopened containers at an average temperature of 25°C.