AB Chimie Polyurethane U69-42
AB Chimie Polyurethane U69-42 is a premium polyurethane resin specifically developed by ABchimie to provide robust protection for electronic circuits. As an excellent insulator against aggressive environments, it significantly contributes to the mechanical protection of electronic components. This advanced material offers good thermal conductivity (0.75 W/m²K) and cures into a moderately flexible, durable layer.
Key Features of AB Chimie Polyurethane U69-42
This two-part polyurethane resin system is designed for high performance. It boasts a mix ratio of 100:16 and a viscosity of 1100 cSt, ensuring ease of application. With an operating temperature range from -50°C to +120°C, it provides reliable protection across diverse conditions. The dielectric strength of 25 kV/mm further enhances its insulating capabilities. Available in white or black, it cures to a Shore D35 hardness, offering a balance of flexibility and durability. Its thermal conductivity of 0.75 W/m²K helps manage heat effectively. The practical pot life of 15-20 minutes and gel time of 30 minutes allow for efficient processing.
Applications for AB Chimie Polyurethane U69-42
The versatility of AB Chimie Polyurethane U69-42 makes it ideal for various demanding applications, particularly in potting and encapsulation where protection in thickness is crucial. It effectively protects and insulates PCB components against harsh environments, including moisture, vibration, and both mechanical and thermal shocks. This resin allows subsets to operate completely immersed in water, solvents, or gases. It is highly suitable for critical industries such as Medical, Automotive, Home Appliance, Spatial, and Military, ensuring long-term reliability and performance.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Properties on Cured Resin | Value |
| Tensile strength | 7 MPa |
| Elongation at break | 110 % |
| Coefficient of thermal expansion | 45/140 10⁻⁶K⁻¹ |
| Hardness | 46/36 D1/D15 |
| Glass transition temperature | -5 °C |
| Dielectric strength (50 Hz – 1 mm) | 25 kV/mm |
| Dielectric constant (100Hz) | 7.7 |
| Dissipation factor tg δ (100Hz) | 0.12 |
| Volume resistivity (1000V) | 2.10¹⁴ Ω.cm |
| Thermal conductivity | 0.7 W/m°K |
| Water absorption (23°C – 24h) | 0.3 |
