Weather Resistant Waterproof PU Compound Potting Materials For Electronics

High-performance UV-Resistant Transparent Waterproof PU Potting Compound                                                                                                         

Product Description

BZ-3328-6 potting compound is a weather-resistant transparent polyurethane material specifically engineered for LED point light sources, linear LED lights, and outdoor LED lighting. This product demonstrates exceptional flowability during application, with a viscosity of only 300-500 mPa·s at 25°C. It ensures thorough penetration and complete encapsulation of all electronic components, providing superior protection. The compound can be cured at room temperature or accelerated by heating. Upon curing, it forms a resilient protective layer with a tensile strength of approximately 65A, exhibiting strong adhesion to common plastics and metals. It also offers excellent resistance to yellowing and waterproof performance, achieving IP67 or IP68 ratings.

Key Product Features

1. Two-component polyurethane, featuring convenient process operation, and High flowability.
2. Compliant with RoHS and REACH environmental regulations.
3. Can be heated to accelerate curing, offering efficient curing performance.
4. Excellent weatherability and UV resistance, providing up to 3 years of outdoor service life; 
5. Outstanding flexibility and bend resistance, effectively protecting LEDs and PCBs.

Technical Parameters 

Product Applications

1. LED linear light : operating temperature range of-40 to 85°C with 3-year outdoor yellowing resistance;
2. LED light source: The cured colloid exhibits high transparency while providing protective encapsulation for LED chips. It demonstrates strong adhesion to both plastic and metal casings, with IP67/IP68 waterproof ratings ensuring suitability for aquatic environments including riverbanks.
3. Sensors: It has excellent waterproof and moisture-proof performance, and the low stress characteristics can provide effective protection for the internal electronic components.

Directions for Use

Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc. 

Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.

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.

Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.

Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.

Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.

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.

Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

Packing & Shipping & Storage

Hardener: Typically 5KG/ 10KG / 20KG/ 200KG metal or plastic drums.

Resin: Typically 5KG/ 10KG / 20KG / 200KG metal or plastic drums.

Store and transport as a general chemical product.

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.

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.

FAQ

Q1: Can this potting compound be used for outdoor electronic applications? 

A2: Yes, the weather-resistant properties of this transparent polyurethane potting compound make it suitable for outdoor use, providing protection against UV rays, rain, and temperature fluctuations.

Q2: What are the main features of the Weather-Resistant Transparent Polyurethane Potting Compounds? 

A1: This potting compound offers excellent weather resistance, high transparency, strong adhesion, and durability, making it ideal for protecting electronic components from moisture, dust, and environmental damage.

Q3: What types of electronics are compatible with this potting compound? 

A5: It is compatible with a wide range of electronic components, including circuit boards, sensors, connectors, and LED assemblies, especially those requiring clear encapsulation and protection from harsh environmental conditions.

Q4: Is the compound easy to apply and cure? 

A3: Yes, the potting compound has good flow characteristics for easy application and typically cures at room temperature, forming a tough and flexible protective layer.

Q5: Does the transparent nature of the compound affect its protective qualities? 

A4: No, the transparency of the polyurethane potting compound does not compromise its protective features; it still provides excellent insulation and environmental protection while allowing visual inspection of the encapsulated components.