Latest company case about Shenzhen Hanast New Material co.,LTD Certifications

This case study describes how an electronics manufacturer supplying Southeast Asia used HN-8810A/B thermally conductive silicone potting compound from Shenzhen Hanast New Materials to protect automotive and network electronics against heat, humidity and vibration. Applications included automotive HID lamp module power supplies, ignition-system module power supplies and network transformers.

In a hot and humid tropical climate, unprotected electronics are vulnerable to moisture ingress, corrosion and overheating. The manufacturer needed a potting solution that could:

• resist humidity and moisture to prevent corrosion and short circuits;
• conduct heat away from power-components and transformers;
• withstand thermal cycling and vibration over years of service;
• provide electrical insulation for safety and reliability;
• be processed simply — mixed 1:1 and cured without a complex line.

HN-8810A/B is a two-component addition-cure (platinum) silicone potting compound. It has a 1:1 mix ratio by weight, low viscosity for self-levelling, and cures at room temperature or at 80°C for 10–20 min. The cured elastomer is flame-retardant (UL94 V-0) and keeps rubber elasticity from −40°C to 150°C.

1. Stir Components A and B separately before use.
2. Weigh A and B accurately in a 1:1 ratio by weight.
3. Mix by hand or machine until the colour is uniform.
4. Vacuum-degas the mixture to remove trapped air.
5. Pour into the clean, dry device to complete potting.
6. Cure at room temperature or at 80°C for 10–20 min.

This addition-cure (platinum) silicone may fail to cure in contact with organotin and tin-containing silicone rubbers; sulphur, polysulphide compounds or sulphur-containing articles; amines, polyurethane rubber or ammonia-containing items; phosphorus-containing items; acidic items (organic acids); and solder-flux residues. Substrates, tools and containers must be clean and free of these contaminants.

• Waterproof, moisture-proof potting protected electronics in the humid tropical climate;
• 1.0 W/m·K conductivity helped manage heat in power supplies and transformers;
• Rubber elasticity from −50°C to 200°C coped with thermal cycling;
• UL94 V-0 rating added a layer of fire safety;
• Simple 1:1 mixing and fast heat cure streamlined production.

For electronics producers targeting Southeast Asia, HN-8810A/B offers reliable protection against heat and humidity with easy 1:1 processing. Shenzhen Hanast New Materials supports partners with samples, application guidance and technical data.