Flexible Circuit Boards Polyurethane Potting Compound Clear Liquid Moistureproof

Yellowing-resistant Transparent Flexible LED Light Strip PU Potting Compound                                                                                                                                                                                              

Product Description

BZ-3328-1 PU potting compound is a yellow-resistant transparent polyurethane specifically engineered for LED flexible light strips and lighting products. This outdoor-grade material delivers three years of yellowing resistance while maintaining exceptional flexibility and bending durability. It provides waterproof protection for flexible LED strips and displays currently available on the market, effectively shielding LED chips and FPC flexible circuit boards from moisture and water damage. Moreover, it ensures long-term stable operation of these LED flexible lighting solutions even in harsh environments.

Key Product Features

1. Two-component polyurethane, featuring convenient process operation, and moderate flowability.
2. Complies with ROHS and REACH environmental requirements.
3. Able to be heated to accelerate curing, offering good curing efficiency.
4. Excellent weather resistance and UV resistance properties,It can be used outdoors for 3 years;
5. Extremely flexible and bend-resistant, it effectively protects the LED and FPC board.

Technical Parameters 

Product Applications

1. LED flexible light strip: 45A Shore hardness, bendable at 90°C, 100% elongation at break, enabling versatile installation methods.
2. LED strip light: featuring excellent flexibility and LED protection, with a wide temperature range of-40 to 85°C, enabling their use in harsh environments.
3. LED Display :Flexible encapsulation materials protect the entire LED display while enabling flexible installation. Their smooth surface ensures the display adheres tightly to the glass substrate.
4. Sensor:Flexible potting materials provide comprehensive protection for the entire LED display panel while enabling flexible installation. Their smooth surface ensures a tight bond between the display and glass substrates. The sensor features softness and minimal stress, offering 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: Does the transparent nature of the compound affect its protective qualities? 

A1: 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.

Q2: 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.

Q3: What are the main features of the Weather-Resistant Transparent Polyurethane Potting Compounds? 

A3: 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.

Q4: What types of electronics are compatible with this potting compound? 

A4: 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.

Q5: Is the compound easy to apply and cure? 

A5: Yes, the potting compound has good flow characteristics for easy application and typically cures at room temperature, forming a tough and flexible protective layer.