Black Transparent Polyurethane Potting Compounds For Electronic Enclosure

High-Performance Polyurethane Potting Compound For Electronic Enclosures & Harnesses                   

Product Description

BZ-6800-8-1-T is a two-component polyurethane potting compound designed for insulation sealing and protection of power supply enclosures, waterproof connectors, plug assemblies, and wire harnesses. With excellent fluidity and deep penetration capabilities, it ensures full encapsulation of components, providing robust defense against moisture, dust, and mechanical stress. Compliant with RoHS and REACH regulations, this halogen-free formula delivers reliable performance across -40℃ to 120℃, featuring extremely low water absorption (≤0.1%) and high dielectric strength (≥18 kV/mm) for long-term stability in harsh operating environments.

Key Product Features

1. Superior Environmental Protection
   Exhibits exceptional weather resistance and water repellency, with water absorption ≤0.1% after 24 hours immersion, making it ideal for outdoor and high-humidity applications. Its robust sealing properties prevent corrosion and electrical failures caused by moisture ingress.
2. Enhanced Electrical Insulation
   Boasts high surface resistivity (≥1.0×10¹³ Ω/sq) and volume resistivity (≥1.0×10¹⁴ Ω·cm), ensuring reliable electrical isolation between components. With a dielectric constant ≤6 at 50Hz and breakdown voltage ≥18 kV/mm, it effectively prevents arcing and short circuits in high-voltage applications.
3. Strong Adhesion & Mechanical Durability
   Provides excellent bonding strength to metals (aluminum, copper), plastics, and rubber substrates, with tensile shear strength ≥3 MPa (Al-Al) and elongation at break ≥30%. Maintains consistent hardness (Shore D 65±10) across temperature fluctuations, resisting vibration and mechanical shock.
4. Efficient Processing & Rapid Curing
   Features a user-friendly 1:4 weight mix ratio (A:B) that simplifies measurement for both manual and automated systems. Offers a 7-15 minute pot life at 25℃, with fast room-temperature curing (surface dry in 20-60 minutes, full cure in 2-3 hours). For high-volume production, accelerated curing at 60℃ reduces total cure time to just 10±2 minutes.
5. Global Regulatory Compliance
   Fully compliant with RoHS and REACH directives, with a halogen-free formulation that meets international electronics manufacturing standards. Supports seamless integration into global supply chains and reduces environmental impact.

Technical Parameters 

Product Applications

1. Power Supply Enclosures: Seals and insulates industrial power supplies, LED drivers, and battery packs, protecting internal components from dust, moisture, and thermal stress.
2. Waterproof Connectors & Plugs: Enhances reliability of automotive connectors, marine plugs, and industrial interface components, ensuring IP67/IP68 protection in challenging environments.
3. Wire Harnesses & Cable Assemblies: Encapsulates terminal blocks and cable junctions, preventing wire corrosion and signal interference in aerospace, automotive, and renewable energy systems.
4. Outdoor Electronic Devices: Provides environmental protection for solar inverters, wind turbine controllers, and IoT sensors, ensuring long-term performance in extreme temperatures and weather conditions.

Directions for Use

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc. 
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. Accurate Proportioning: Manual operation requires precise mixing according to the specified ratio and recording. Machine potting requires calibrated ratios and first-article confirmation is recommended.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. Curing: Allow the potted and inspected products to cure at room temperature or with heat assistance (recommended 60°C if needed), according to product and process requirements.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

Packing & Shipping & Storage

1. Hardener: Typically 5KG/10KG/25KG/200KG metal or plastic drums.
2. Resin: Typically 25KG/200KG metal or plastic drums.
3. Store and transport as a general chemical product.
4. Store sealed, protected from light at room temperature. Shelf life varies from 6 to 12 months depending on packaging; please refer to the expiry date on the shipping package.
5. When temperature drops to 15°C or lower, the hardener or resin should be stored in a warm place or heated before use for potting. Specific heating recommendations depend on the temperature drop; please communicate and consult with us.