MG Chemicals 8810-375ML, Black Rigid Urethane, 375ml 2 Bottle Kit, Case of 1 Kit
MG Chemicals 8810-375ML — Black Rigid Urethane Potting Compound, 375ml 2-Bottle Kit
The MG Chemicals 8810-375ML (SKU: 8810-375ML) is a black, tough, 2-part rigid urethane potting compound in a 375ml 2-bottle kit. Featuring a low mixed viscosity, excellent moisture resistance, and strong adhesion to a wide variety of substrates — including metals, composites, glass, ceramics, and many plastics — it is designed for potting and encapsulating intricate electronic components, PCB assemblies, and cable jointing boxes. The 2:1 mix ratio and 45-minute working time make it suitable for both manual and production potting applications.
Key Specifications
- Part Number / SKU: 8810-375ML
- Color: Black
- Type: 2-part rigid urethane potting compound
- Net Volume: 375 mL
- Net Weight: 428 g
- Packaging: 2-Bottle Kit
- Mix Ratio: 2:1 (by volume)
- Working Time: 45 minutes
- Cure Time: 24 hours at room temperature
- Service Temperature: -50°C to 120°C (-58°F to 248°F)
- Viscosity: Low mixed viscosity
- Exotherm: Low
- Dielectric Properties: Excellent
- Adhesion: Metals, composites, glass, ceramics, many plastics
- Brand: MG Chemicals
Applications
- Potting and encapsulation of electronic components and PCB assemblies
- Cable jointing box potting and sealing
- Protection of electronics from moisture, vibration, and mechanical shock
- Encapsulation of sensors, transformers, and power supplies
- Industrial and commercial electronics requiring rigid, durable potting
Resources
Frequently Asked Questions
What is the mix ratio for MG Chemicals 8810-375ML?
The 8810 is a 2-part urethane with a 2:1 mix ratio by volume (Part A to Part B). Accurate measurement is critical — off-ratio mixing will result in incomplete cure, soft spots, or tacky surfaces. Use calibrated dispensing equipment or carefully measure each component before mixing.
How long does MG Chemicals 8810 take to cure?
The 8810 has a 45-minute working time after mixing and cures fully in 24 hours at room temperature. Cure can be accelerated with moderate heat — consult the MG Chemicals TDS for elevated temperature cure schedules. Do not disturb or stress the potted assembly until fully cured.
What substrates does MG Chemicals 8810 adhere to?
The 8810 adheres strongly to metals, composites, glass, ceramics, and many plastics. For best adhesion, surfaces should be clean, dry, and free of oils, release agents, or contaminants. Some plastics (particularly polyolefins like PE and PP) may require surface preparation or priming for adequate adhesion.
What is the service temperature range of MG Chemicals 8810?
The cured 8810 compound has a constant service temperature range of -50°C to 120°C (-58°F to 248°F), making it suitable for electronics operating in cold storage, outdoor, or moderately elevated temperature environments.
Is MG Chemicals 8810-375ML available in larger sizes?
Yes. The MG Chemicals 8810 rigid urethane is available in multiple kit sizes including 2.55L and 60L can kits for higher-volume production applications. Contact MTE Solutions for volume pricing and availability on larger kit sizes.
