Needle Dispensed Dowsil Adhesive EA-4100 For Electronics Encapsulation

Dowsil EA-4100 Needle-Dispensed Adhesive for Electronics Encapsulation

Basic Properties​

Dowsil EA-4100 is a one-part, moisture-cure white paste adhesive with density 1.42 g/cm³ (cured), Shore A hardness 45, and elongation at break 250%. Designed for needle dispensing in electronics encapsulation, operable from -45°C to 200°C.

Product Description​

EA-4100 cures via ambient moisture-triggered condensation, eliminating heating systems (tack-free in 9 min@25°C). 260 g/min extrusion rate suits automated dispensing, while 1 cm slump enables uniform filling. Volume resistivity and dielectric strength data not provided in TDS.

Characteristics​

Application Scenarios​

Power Module Potting: Encapsulates IGBT modules. 250% elongation absorbs thermal cycling stress, compliant with MIL-STD-810G thermal shock.
Automotive Sensor Bonding: Adheres O₂ sensor connectors. -45°C flexibility prevents cracking, implemented in Bosch assembly lines.
LED Driver Sealing: Edge-seals outdoor PCBs. Moisture-cure properties suit high-humidity environments, achieving IP67 rating.
Chip Reinforcement: Secures processor peripherals. 45 Shore A hardness balances impact resistance & stress relief, used in Huawei base stations.

FAQ:

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including:

Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.

3. How do you guarantee product quality?

Quality assurance through:

Mandatory pre-production samples approval

Final inspection by QC team before shipment

International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply:Authentic products from top manufacturers

Expert Support:Technical guidance for product selection

Global Compliance:Certifications meeting target market standards

Efficient Service:Customized solutions & professional support

5. What services do you provide?

Delivery​:EXW/FOB/CIF

Payment​:USD/EUR/CNY/HKD via T/T, L/C

Support​:Technical consultation & logistics coordination

Shenzhen Huazhisheng New Materials Technology Co., Ltd. is a leading provider of environmentally friendly adhesives and technical solutions, specializing in the application of modified silicone rubber, epoxy adhesives, thermal materials, bonding adhesives, encapsulation adhesives, and UV adhesives across various industries such as electronics, home appliances, LED lighting, automotive, consumer electronics, rail transit, aerospace, and electrical power. Huazhisheng New Materials adheres to the corporate sustainable development strategy of "Progress, Innovation, Professionalism, and Integrity," and integrates the philosophy of "Quality, Efficiency, Environment-Friendly, and Reliability" throughout the entire product lifecycle. Our products have passed SGS, UL, FDA, DIN, and non-toxic certifications, and have been awarded multiple global patents, making us one of the primary suppliers of adhesives and new materials in China's new energy, electronics, automotive, industrial, packaging, environmental protection, construction, and high-speed rail sectors.
With an innovative perspective, we offer customized solutions, continuously develop leading technologies, and provide comprehensive support to clients across various industrial sectors. We are committed to collaborating with our clients to drive industrial transformation and upgrading, ensuring your sustained competitive edge.
Based on advancements in various polymer chemical materials, Huazhisheng New Materials has established a leading position in four key areas: coating, bonding, sealing, and thermal conductivity. Our efficient and environmentally friendly adhesive products and technical solutions help industrial enterprises enhance production efficiency and benefits, protect your electronic products from external chemical agents and harsh usage environments, and extend their lifespan, ensuring continuous and stable operation.