Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Product Features
A machinable, urethane electrical potting compound. UC-2521 offers premium resistance to corrosive and environmental hazards, while providing electrical insulation.
Applications & Uses
- Markets
- Applications
- Product Applications
It is useful for general purpose casting, potting or encapsulating intricate circuits, operational amplifiers, transformers, and other electric/electronic components.
- Instruction for Use
1. PART-B contains 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.
2. Mix contents thoroughly each time before removing material.
3. To each 100 grams of Part B, add 25 grams of Part A and mix it well preferably using a mechanical mixer.
4. Vacuum degas for about five minutes to remove any dissolved or entrapped air.
5. Proceed with the casting or potting 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
- Component A
- Typical Properties
- Component B
- Typical Cured Properties
- Recommended Cure Schedules to Obtain Optimum Properties
Temp. (°C) Demold Time Cure Time 25 8-10 hrs 7 days 60 1-2 hr 6 hrs 100 20 minutes 4 hr
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, PART-A) | 10,000-14,000 | cPs | — |
| Value | Units | Test Method / Conditions | |
| Polyol | Part B | — | — |
| Isocyanate | PART A | — | — |
| Mix Ratio by Weight (A:B) | 25:100 | — | — |
| Mixed Viscocity | 2000 - 4000 | cPs | — |
| Pot Life (at 25°C, 100g) | 20-30 | minutes | — |
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, PART-B) | 100 - 200 | cPs | — |
| Value | Units | Test Method / Conditions | |
| Specific Gravity | 1.4 | — | — |
| Hardness | 50 | Shore D | — |
| Water Absorption (24 hr at Room Temperature) | 0.15 | % | — |
| Weight Loss (at 120°C, 7 days) | 0.2 | % | — |
| Thermal Conductivity | 0.3 | W/m °K | — |
| Service Temperature Range | -55 to 130 | °C | — |
| Glass Transition Temperature (Tg) | max. 10 | °C | — |
| Coefficient of Thermal Expansion | 120 | ppm/°C | — |
| Dielectric Strength (0.125 inch) | 420 | Volts/mil | — |
| Dielectric Constant (at 1 kHz) | 4.2 | — | — |
| Dissipation Factor (at 1 kHz) | 0.02 | — | — |
| Volume Resistivity | 2x10^14 | Ω-cm | — |
Regulatory & Compliance
- Certifications & Compliance
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
- 6 Months
- Shelf Life
The shelf life of these materials is six months when stored in unopened containers at an average temperature of 25°C. If containers are opened and the contents only partially used, the container should be flushed with dry nitrogen before being resealed.