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