HONG YE SILICONE Electronic Potting Compound for Quad Flat Packages (QFP) is a high-reliability two-component Addition Curing Silicone, also known as Silicone Encapsulant and electronic Potting Compound, tailored for QFP protection. Crafted from high-purity Silicone raw materials, it features adjustable weight mixing ratio, ultra-low curing stress, excellent temperature resistance (-60℃ to 220℃), strong adhesion and minimal volatility. It cures at room or heated temperatures, protects QFP pins from bending and corrosion, ensures insulation and signal stability, complies with EU RoHS, and supports full parameter customization (around 198 characters).
Product Overview
Our Electronic Potting Compound is specially developed for Quad Flat Packages (QFP), dedicated to encapsulating, sealing, insulating and protecting QFP chips, delicate pins, PCB pads and surrounding components. As a leading manufacturer of liquid silicone and addition curing silicone, we optimize the formula for QFP’s fine-pitch pins and fragile structure, enhancing low curing stress, anti-vibration and excellent adhesion. Compared with epoxy potting resin, it has minimal volatile content, no exotherm during curing, good flexibility, avoiding QFP pin bending, detachment and signal interference.
Key Features & Advantages
- Ultra-Low Curing Stress & Pin Protection: Customizable low-stress formula, cures without exotherm, minimal shrinkage rate, effectively absorbing thermal and mechanical stress, protecting QFP fine-pitch pins from bending, breakage and corrosion, ensuring stable signal transmission of QFP assemblies.
- Superior Insulation & Anti-Interference: High dielectric strength (≥25 kV/mm) and volume resistivity (≥1.0×10¹⁶ Ω·cm), ensuring excellent insulation between QFP pins and adjacent components; effectively isolating external electromagnetic interference, avoiding signal distortion and short circuits.
- Strong Adhesion & Wide Compatibility: Excellent adhesion to PCB, PC, aluminum, copper, stainless steel and QFP chip substrates, tightly bonding QFP assemblies to PCBs; no corrosion to pins or chip surfaces, ensuring firm and long-lasting encapsulation without peeling.
- Excellent Temperature & Environmental Stability: Stable performance from -60℃ to 220℃, resisting extreme temperature cycles and harsh environments; waterproof, moisture-proof, dust-proof and anti-corrosive, adapting to automotive, industrial and high-precision electronic working conditions.
- Easy Operation & Customizability: Adjustable weight mixing ratio, optional vacuum degassing (0.01MPa for 3 minutes), curable at room or heated temperatures, improving encapsulation efficiency; as a professional Silicone Potting Compound manufacturer, we customize viscosity, hardness and flexibility to match different QFP pin pitches and packaging needs.
How to Use
- Pre-Mix Preparation: Thoroughly stir Component A to evenly distribute settled fillers, and shake Component B vigorously to ensure uniformity, avoiding stratification that affects adhesion and QFP pin stability.
- Precision Mixing: Strictly follow the recommended weight ratio of Component A to B, stirring slowly and evenly to ensure full integration without air bubbles that cause insulation gaps or stress concentration on QFP pins.
- Degassing (Optional): After mixing, place the adhesive in a vacuum container at 0.01MPa for 3 minutes to eliminate air bubbles, then carefully pour it onto QFP assemblies to ensure full coverage of pins and PCB pads without excessive pressure that bends pins.
- Curing: Place the encapsulated QFP assemblies at room temperature or heat to accelerate curing; enter the next process after basic curing, and ensure 24 hours of full curing. Note: Environment temperature and humidity significantly affect curing speed and QFP performance.
Application Scenarios
This specialized electronic potting compound is widely used for Quad Flat Packages (QFP) in automotive electronics (in-vehicle control modules, sensor modules), industrial control (high-precision electronic assemblies), consumer electronics (laptops, smart devices), medical devices and communication equipment. It is ideal for encapsulating QFP chips with fine-pitch pins, preventing pin bending and signal failure, ensuring stable operation in compact electronic systems. It enhances QFP reliability, reduces failure rate, improves environmental adaptability, and is compatible with Rapid prototyping silicone to accelerate new QFP product R&D. Technical Specifications
Curing Type: Addition-Curing; Mix Ratio (A:B): Customizable (weight ratio); Appearance: Liquid (both components); Viscosity: Customizable (suitable for QFP pin coverage); Hardness (Shore A): Customizable; Operating Temperature: -60℃ to 220℃; Dielectric Strength: ≥25 kV/mm; Volume Resistivity: ≥1.0×10¹⁶ Ω·cm; Dielectric Loss: Low (customizable); Volatility: Minimal; Curing Time: 24 hours (room temperature, heat-accelerated); Bonding Substrates: PCB, PC, aluminum, copper, stainless steel, QFP chip substrates; Compliance: EU RoHS; Shelf Life: 12 months. All key parameters are fully customizable.
Certifications & Compliance
Our Electronic Potting Compound complies with international electronic, safety and environmental protection standards: ISO 9001 (strict quality control), CE Certification, EU RoHS Directive, meeting global QFP production requirements, trusted by global electronics manufacturers and procurement partners.
Customization Options
We provide QFP-specific tailored solutions: custom formulations (adjust dielectric properties, viscosity, hardness and curing speed), anti-pin bending optimization, and flexible packaging to meet large-scale production and prototype R&D needs of different industries.
Production Process & Quality Control
We implement a 5-step strict quality control process: high-purity silicone raw materials screening, precision automated formulation mixing, performance testing (dielectric properties, adhesion, anti-interference), curing verification, and sealed packaging. Our monthly capacity exceeds 500 tons, supporting stable supply for global orders. The product is non-hazardous, transportable as general chemicals, and has a 12-month shelf life when sealed and stored properly.
FAQ
Q: Is it suitable for fine-pitch QFP packages?
A: Yes, it has ultra-low curing stress, effectively protecting fine-pitch pins from bending and ensuring stable signal transmission.
Q: Will it affect QFP pin conductivity?
A: No, it has stable dielectric properties, no interference with QFP signal transmission.
Q: What’s the curing time?
A: 24 hours at room temperature, heat-accelerated.
Q: Shelf life?
A: 12 months when sealed and stored properly.
Q: Can it be customized for different QFP pin pitches?
A: Yes, we adjust viscosity and hardness to match various QFP specifications and packaging scenarios.
Shenzhen Hong Ye Jie Technology Co., Ltd
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