Product Overview
Our Electronic Potting for Electret Microphones is a professional Silicone Potting Compound developed for the encapsulation, sealing, insulation and protection of electret microphones. As a leading manufacturer of electronic Potting Compound and silicone raw materials, we optimize the formula for the high insulation, anti-interference and signal preservation requirements of electret microphones. Unlike ordinary potting silicones, it can absorb internal stress from temperature cycles, resist corrosion and ozone, avoid interfering with microphone sound pickup and signal transmission, and has excellent adhesion to aluminum, copper, stainless steel and PC/PMMA/PCB, effectively protecting microphones and ensuring long-term stable operation for procurement partners.
Key Features & Advantages
- Superior Insulation & Anti-Interference: Ultra-strong insulation performance (dielectric strength ≥25 kV/mm, volume resistivity ≥1.0×10¹⁶ Ω·cm), preventing short circuits and ensuring safe operation; no interference to electret microphone sound pickup and signal transmission, maintaining sound clarity and signal stability.
- Excellent Shockproof & Temperature Adaptability: Operating stably from -60℃ to 220℃, with outstanding high and low temperature resistance; soft after curing, good shock absorption, effectively reducing vibration damage to microphone chips and internal components; can absorb internal stress caused by temperature cycles, protecting welding wires from breaking.
- Strong Adhesion & High Stability: Excellent adhesion to aluminum, copper, stainless steel and other metals, as well as PC, PMMA and PCB materials (common in microphones), forming a tight seal without detachment; low volatility, high strength, no stratification after long-term storage (stir before use without affecting performance).
- Easy Operation & Flexible Curing: Two-component design, easy to mix evenly after stirring Component A (to mix settled filler) and shaking Component B; optional vacuum defoaming (0.01MPa for 3 minutes); supports room temperature or heated curing, full curing in 24 hours, suitable for batch production of microphones.
- Environmental Protection & Safety: Addition-curing silicone, non-toxic and non-hazardous, fully compliant with EU RoHS directive; non-dangerous goods, easy to transport and store; mixed glue can be used up at one time, avoiding waste and reducing procurement costs.
How to Use (Step-by-Step Guide)
- Pre-Mixing Preparation: Fully stir Component A in its container to mix the settled filler evenly, and shake Component B thoroughly to ensure uniform consistency, avoiding affecting curing effect and adhesion to microphone components.
- Mixing: Mix Component A and Component B according to the specified weight ratio (customizable), stir slowly and evenly to avoid generating air bubbles, which may affect insulation and sealing performance of electret microphones.
- Degassing (Optional): Put the mixed potting compound into a vacuum container, degas at 0.01MPa for 3 minutes to completely eliminate air bubbles, then pour it into electret microphone packaging molds or casings.
- Curing: Place the encapsulated microphone at room temperature for curing or heat to accelerate curing; enter the next process after basic curing, and full curing takes 24 hours. Note: Environment temperature and humidity significantly affect curing speed.
Application Scenarios
This specialized electronic potting compound and silicone encapsulant is mainly used for encapsulation, sealing, filling and pressure protection of electret microphones. It is widely applied in consumer electronics (headphones, speakers), communication equipment, smart home devices, medical instruments, security monitoring and automotive electronics. It ensures stable operation of electret microphones in various environments, reduces failure rates caused by moisture, corrosion and vibration, maintains sound quality and signal stability, and helps procurement partners reduce production costs and enhance product competitiveness.
Technical Specifications
Type: Addition-Curing Electronic Potting Silicone; Mix Ratio (A:B): Customizable (weight ratio); Appearance: Liquid (both components); Viscosity: Customizable; Working Time: Customizable; Curing Time: 24 hours (full, room temp/heated optional); Operating Temperature: -60℃ to 220℃; Dielectric Strength: ≥25 kV/mm; Volume Resistivity: ≥1.0×10¹⁶ Ω·cm; Adhesion: Excellent (metals, PC, PMMA, PCB); Volatility: Minimal; Compliance: EU RoHS; Shelf Life: 12 months (sealed storage); Non-hazardous; Customizable parameters available.
Certifications & Compliance
Our Electronic Potting for Electret Microphones complies with international standards: ISO 9001 (strict quality control), CE Certification, EU RoHS Directive, meeting global electret microphone production requirements, trusted by global electronic component manufacturers and procurement partners.
Customization Options
We provide electret microphone-specific customization: adjust viscosity, hardness, curing speed, insulation and shockproof performance; optimize adhesion for microphone materials (metals, PC/PMMA/PCB); flexible parameter adjustment, meeting small-batch and large-scale production needs of different industries, adapting to various microphone sizes and working conditions.
Production Process & Quality Control
We implement a strict 5-step quality control process: high-purity silicone raw materials screening, precision automated mixing, performance testing (insulation, adhesion, temperature resistance), curing verification, and sealed packaging. Monthly capacity exceeds 500 tons, supporting stable global supply; non-hazardous, transportable as general chemicals.
FAQ
Q: Is it suitable for all electret microphones?
A: Yes, it can be customized for different microphone sizes and materials, with good compatibility and no interference to sound pickup and signal transmission.
Q: What’s the mixing ratio?
A: Customizable weight ratio, easy to operate and mix.
Q: How to store the product?
A: Seal and store, shelf life is 12 months; stir evenly before use if stratified, no impact on performance.
Q: Is it hazardous?
A: No, it is non-hazardous and can be transported as general chemicals.
Q: What if it gets into eyes or mouth?
A: Rinse with clean water immediately or seek medical attention.
Shenzhen Hong Ye Jie Technology Co., Ltd
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