Automotive Grade Potting Compound HN-8808 Series - Vibration & Thermal Shock Resistant

Automotive Grade Potting Compound HN-8808 Series - Vibration & Thermal Shock Resistant

Product Overview for Silicone Potting Compound:

The HN-8808 Series Potting Compounds meet the stringent reliability requirements of automotive electronics. Their excellent elastomeric properties effectively absorb mechanical vibration and shock stress. The wide operating temperature range (-50°C to 200°C) ensures stable performance in harsh environments like engine compartments. This product is designed to protect automotive electronic modules from moisture, chemicals, thermal cycling, and vibration, helping them pass automotive-grade reliability tests.

Key Performance Parameters for Silicone Potting Compound:

* Appearance (Mixed): Transparent/Black/White Elastomer (select as needed)

* Mix Ratio (A:B): 10 : 1 (by weight)

* Pot Life (25°C): 40-60 minutes

* Cure Time (25°C): 4-6 hours (tack-free), 24 hours (full cure)

* Hardness (Shore A): 30-40 (GB/T531-1999)

* Volume Resistivity: ≥5.0×10¹⁴ Ω·cm (GB/T 31838.2-2019)

* Thermal Conductivity: 0.3-0.5 W/M·K (depending on color, GB/T 38712-2020)

* Dielectric Strength: ≥14 kV/mm

* Elongation at Break: ≤100%

Product Highlightsfor Silicone Potting Compound:

* Exceptional Environmental Resilience: Resistant to thermal shock, high temperature/humidity, with stable performance under extremes.

* Excellent Chemical Resistance: Good resistance to automotive oils, brake fluids, coolants, etc.

* Effective Stress Relief: Low hardness and high elasticity absorb stress between PCB and housing, protecting delicate components.

* Long-Term Durability: Superior anti-aging properties ensure continuous protection throughout the vehicle's lifecycle.

* Compliant with Environmental Standards: Products comply with directives like RoHS, meeting automotive industry environmental requirements.

Application Areas for Silicone Potting Compound:

* Engine Control Units (ECU)

* Battery Management Systems (BMS), Onboard Chargers (OBC)

* Sensors (e.g., pressure, position sensors)

* Light controllers, wiper controllers

* Infotainment systems & dashboards

Detailed Operating Guide for Silicone Potting Compound:

1. Process Validation: Strongly recommend process validation before mass production to confirm compatibility with your substrates (e.g., epoxy PCB, polyurethane enameled wires).

2. Precise Metering & Mixing: Recommend using static mixers with dual-component meter-mix equipment for absolute ratio accuracy and thorough mixing, critical for long-term automotive reliability.

3. Vacuum Degassing: Vacuum degassing is mandatory to eliminate any potential for partial discharge or increased thermal resistance.

4. Controlled Potting Environment: Potting should be done in a clean, temperature, and humidity-controlled environment to minimize contamination risk.

5. Adequate Curing & Post-Curing: Allow to sit at room temperature for at least 24 hours after potting before electrical testing. Final sealing and rigorous environmental testing should be performed after 7 days.

Key Precautions for Silicone Potting Compound:

* Compatibility Testing: Must test compatibility with all materials on the PCBA (solder mask, labels, conformal coatings) to avoid silicone oil bleeding or adhesion failure.

* By-product Release: Curing releases ethanol by-products. Housing design should include vent holes, sealed only after curing is complete.

* Do Not Heat: Heat curing will cause complete product failure and is strictly prohibited.

* Incoming Inspection: Recommend spot-checking key properties (viscosity, pot life) for each batch received.

Packaging & Storage for Silicone Potting Compound:

* Standard Packaging: 22kg/set (20kg A + 2kg B); 11kg/set (10kg A + 1kg B). 200kg steel drums also available for high-volume needs.

* Storage Conditions: Store in a cool, dry place away from direct sunlight.

* Shelf Life: 6 months in original, unopened containers from date of manufacture.

FAQ for Silicone Potting Compound:

1. Q: Is this product certified to specific automotive standards?

A: Our products comply with automotive-related material standards (e.g., RoHS). We can support your end-product certification by providing all required Material Data Sheets.

2. Q: How do you prevent delamination during vibration testing?

A: Our optimized formulation ensures excellent adhesion to metals (especially aluminum) and PCBs, while its elastic modulus effectively dissipates vibrational stress. We can provide relevant vibration test reports.

3. Q: Do the curing by-products affect sensitive components?

A: The released ethanol is safe under normal ventilation. For extremely sensitive optical components or contacts, thorough evaluation is recommended. We can also discuss alternative cure systems (e.g., alkoxy).

4. Q: Can you provide UL certification?

A: The HN-8808 series is undergoing UL 94 V-0 certification. Please consult our sales for the latest status.

5. Q: Our production line lacks temperature control in winter, leading to long cure times. Any solution?

A: We understand this issue. While heating is not an option, we can offer a low-temperature fast-cure version that achieves tack-free state within 8 hours even at 15°C. Samples are available for testing.

Shenzhen Hanast New Materials Co., Ltd. is a subsidiary of Shenzhen Kanglibang Technology Co., Ltd. The brand "Hanast", established in 2019, has been dedicated to expanding the international market. The company is committed to the research and development and innovation of new adhesive materials, integrating R&D, manufacturing, sales and service. It has developed into a national "Little Giant" enterprise specializing in "Specialized, Precision, Unique and Innovative" and a national high-tech enterprise. With a modern production base of 40,000 square meters, the company has become a professional service provider for one-stop customized packaging and heat dissipation material solutions through its independent R&D and production capabilities.

The company has been awarded multiple national invention patents and utility model patents. Its core product, "silicone pressure-sensitive adhesive", has been recognized as a "Guangdong Province Famous and High-tech Product".

Relying on the strong technical strength of Kanglibang, the company has gathered a group of high-quality scientific research talents and a technical team with over ten years of practical experience. The products are deeply trusted by customers and have established cooperative relationships with many world-renowned enterprises such as ABB, Apple, Google, China Southern Power Grid, Foxconn, ZTE, BYD, and Wolong Nuclear Materials. The company's products comply with ROHS standards and have passed authoritative certifications such as SGS, FDA, LFGB, and China Environmental Label.