Transparent High Hardness Epoxy Potting Compound for 5G Base Station Power

HN-5508AB is a transparent two-component epoxy potting compound with a 5:1 mix ratio, specially formulated for 5G base station power supply modules, telecom rectifiers and communication electronics encapsulation. It cures at room temperature or low temperature with low viscosity and long operation time, giving excellent fluidity and easy penetration into narrow clearances of PCBs and power components. The cured body is bubble-free with a smooth glossy surface and high hardness, providing long-term waterproof protection, outstanding electrical insulation and reliable mechanical support for outdoor telecom equipment.

• 5G base station application: reliable encapsulation for 5G base station power modules, remote radio unit power supplies, rectifier modules and communication circuit boards.
• High transparency: clear cured body allows visual inspection of components and wire bonds after potting.
• High hardness: rigid 80 Shore D cured body resists vibration, shock and mechanical stress in outdoor telecom cabinets.
• Waterproof & moisture-proof: water absorption below 0.03% (25℃*24h) protects electronics from humidity, rain and condensation.
• Excellent insulation: dielectric strength 20-22 kV/mm with high surface and volume resistance for high-voltage power components.
• Flame retardant & temperature resistant: operates from -30℃ to 130-150℃, meeting heat dissipation and fire-safety needs of telecom power systems.
• Acid & alkali resistance: cured material resists chemical corrosion and air aging in harsh environments.
• ROHS & SGS compliant: meets environmental requirements for telecom and electronics industries.

5G base station power supply modules, telecom rectifiers, communication power systems, circuit boards, transformers, high-voltage packs, sensors, filters, ignition coils and other electronic components requiring insulation, flame retardancy and temperature resistance.

Customization and OEM/ODM supported. Contact us for free samples.

Shenzhen Hanast New Material Co., Ltd. is a premier high-tech enterprise and leading source manufacturer specializing in the R&D, manufacturing, and global supply of industrial silicone materials. As a strategic branch of the renowned Shenzhen Kanglibang Technology Co., Ltd., Hanast integrates over a decade of chemical adhesive expertise with a cutting-edge 40,000-square-meter modern production base (including our newly expanding Jiangmen facility) to deliver high-capacity, reliable material solutions worldwide.

We serve as a vital tier-one supplier and OEM/ODM partner for global factories, procurement managers, and engineering teams across diverse sectors, including electric vehicles (EV), battery energy storage systems (BESS), solar inverters, LED lighting, and industrial automation.

Q1: What is HN-5508 A/B and which applications does it suit?
A1: HN-5508 A/B is a 5:1 two-component epoxy potting compound with Shore D 85-95 hardness and high dielectric strength. It is widely used for temperature sensors, temperature controllers, transformers, resistors, filters, power supplies, high-voltage packages and circuit boards.

Q2: Is it one-part or two-part, and what are the cure options?
A2: It is a two-part (two-component) epoxy with a 5:1 mix ratio by weight. It can be cured at room temperature in 12-16 hours (tack-free in 6-8 hours), or accelerated at 60-80°C in 1.5-2 hours.

Q3: What are the hardness and electrical insulation properties?
A3: Cured hardness is Shore D 85-95 for rigid protection, with a dielectric strength of 20-22 kV/mm and volume resistivity of 1.1 x 10¹⁵ ohm.cm for reliable electrical insulation.

Q4: What is its temperature and environmental performance?
A4: It withstands -30°C and a heat distortion temperature of 130-150°C, and provides acid/alkali resistance, moisture proofing and aging resistance for harsh environments.

Q5: Can I request samples, and what are the MOQ, packaging and delivery time?
A5: Yes, samples are available. MOQ is 1 kg, supplied in 30 kg/set kits (25 kg A + 5 kg B). Samples ship in 3-5 working days and bulk orders in 7-15 days, with bulk supply and factory-direct pricing.