High Thermal Conductive Two-Part Addition-Type Potting Silicone Rubber 5290R
Product Introduction
The 5290R(A9B9) is a high-performance, two-part addition-type potting silicone rubber designed for a wide range of electronic and electrical applications. This innovative product combines exceptional thermal conductivity with excellent flow properties, making it ideal for applications that require both thermal management and mechanical protection. The red color of the compound provides easy visual identification, while its 1:1 mixing ratio ensures simplicity and consistency in application.
Product Applications
The 5290R(A9B9) is engineered to meet the demanding requirements of modern electronics. Its typical applications include:
Inverter Inductance: Provides thermal management and mechanical protection for inverter components.
Military Power Supplies: Ensures reliable performance in harsh environments, meeting stringent military standards.
Communication Modules: Offers moisture-proof and shockproof protection, enhancing the durability and reliability of communication equipment.
General Electronics: Suitable for a variety of electronic components that require potting, such as transformers, capacitors, and PCBs.
Product Features
High Thermal Conductivity
The 5290R(A9B9) boasts a thermal conductivity of 2 W/m·K, ensuring efficient heat dissipation and maintaining optimal operating temperatures for electronic components.
Excellent Flow and Potting Properties
With a viscosity range of 4,500 to 7,000 mPa·s for Part A and 4,000 to 6,500 mPa·s for Part B, this compound offers excellent flow properties, allowing for easy application and thorough coverage in complex electronic assemblies.
Dual Curing Mechanism
The product can cure at room temperature or be accelerated with heat, providing flexibility in curing processes. The operating time is 130±70 minutes, with a curing time of ≤6 hours at 25°C or ≤30 minutes at 80°C.
Superior Insulation and Flame Retardancy
The 5290R(A9B9) meets the UL94V-0 flame retardancy standard, ensuring safety in high-temperature and fire-prone environments. It also offers excellent insulation properties, with a dielectric strength of ≥13 KV/mm and a volume resistivity of ≥1.0×10^12 Ω·cm.
Wide Temperature Range
Maintains rubber elasticity from -50°C to 200°C, ensuring reliable performance across a broad temperature spectrum.
RoHS Compliance
The product adheres to the RoHS Directive, ensuring environmental safety and compliance with international standards.
Product Parameters
| Item | Unit | Value |
|---|
| Physical Properties Before Curing (25±2℃, 60%±5%RH) |
| Appearance (A) | - | Red flow |
| Appearance (B) | - | White flow |
| Viscosity (A) | mPa·s | 4,500~7,000 |
| Viscosity (B) | mPa·s | 4,000~6,500 |
| Density (A) | g/cm^3 | 2.7~2.8 |
| Density (B) | g/cm^3 | 2.7~2.8 |
| Curing Properties (A:B=1:1) |
| Operating Time | min | 130±70 |
| Curing Time (25℃) | h | ≤6 |
| Curing Time (80℃) | min | ≤30 |
| Physical Properties After Curing (A:B=1:1) |
| Hardness | Shore A | 35~45 |
| Dielectric Strength | KV/mm | ≥13 |
| Volume Resistivity | Ω·cm | ≥1.0×10^12 |
| Dielectric Constant (1.2MHz) | - | ≥2.8 |
| Thermal Conductivity | W/m·K | 2±0.2 |
Directions for Use
Preparation
Fully stir Part A and Part B separately, either manually or mechanically, to ensure uniformity and avoid performance changes caused by filler settling.
Mixing
Accurately weigh the two parts into a clean container by weight ratio (1:1) and stir thoroughly to ensure a homogeneous mixture.
Defoaming
Natural Defoaming: Allow the mixed glue to sit for 20-30 minutes to release air bubbles.
Vacuum Defoaming: For faster defoaming, use a vacuum pump for 5-10 minutes at a vacuum degree of -0.1 MPa.
Potting
Ensure the surfaces to be potted are clean and dry. Apply the adhesive while it still has good flowability to achieve optimal leveling.
Curing
The glue can cure at room temperature or be accelerated with heat. Higher temperatures will speed up the curing process. Heat curing is recommended for faster turnaround times.
Packaging and Storage Conditions
Packaging
Storage
Store the product in a cool and dry location at temperatures between 8-28°C. The shelf life is 6 months when stored properly.
Cautions
Store the product in a sealed container and keep it out of reach of children. Avoid exposure to certain chemicals, such as organic compounds of N, P, and S, and ionic compounds of Sn, Pb, Hg, As, which can inhibit curing. Wipe off residual rosin when using on circuit boards and use soldering tin with low lead content to avoid contamination. For detailed safety information, consult the Material Safety Data Sheet (MSDS).
The 5290R(A9B9) two-part addition-type potting silicone rubber is a versatile and high-performance solution for a variety of electronic and electrical applications. Its combination of high thermal conductivity, excellent insulation properties, and dual curing mechanisms make it an ideal choice for ensuring the reliability and longevity of electronic components. With its easy-to-use 1:1 mixing ratio and wide temperature range, this product offers a comprehensive solution for modern electronics manufacturing and maintenance.
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