8810-375mL Black Rigid Urethane Kit

https://www.mgchemicals.com/products/potting-compounds/polyurethane-resins/urethane-resin/

8810 urethane resin is a black, tough, 2-part potting compound. It features a low mixed viscosity and excellent moisture resistance. In addition, this rigid urethane potting compound adheres strongly to a wide variety of substrates, including metals, composites, glass, ceramics, and many plastics.

This 2-part polyurethane resin offers exceptional physical protection and is designed for potting and encapsulating intricate electronic components and cable jointing boxes.

Features & Benefits
2:1 mix ratio
45 minute working time
24 hour cure at room temperature
Constant service temperature of -50 to 120 °C (-58 to 248 °F)
Low exotherm
Excellent dielectric properties