• Item Name: LOCTITE® ECCOBOND EN 3839
• Manufacturer: Henkel
• Technologies: Acrylic
• Color: Transparent light blue liquid
• Cure Type: UV light + heat cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 240 days at -20 °C
LOCTITE ECCOBOND EN 3839 is a transparent light-blue, one-component acrylic encapsulant designed for PCB protection. It combines UV and thermal curing, offering a reworkable, thixotropic, halogen-free formulation with low Tg and low modulus. Once cured, it ensures durable physical protection and stable electronic performance in temperature, humidity, and bias conditions.
Encapsulant and glob top for PCB assemblies
Specifically suited for CSP and BGA packages
Used where UV + heat curing, flexibility, and reworkability are required
| Property | Still Not Mixed (Uncured) | After Mixed / Cured |
|---|---|---|
| Appearance | Transparent light blue liquid | Solid encapsulant |
| Viscosity (mPa·s, 25°C, 5 rpm) | 7,800 | — |
| Thixotropic Index (0.5/5 rpm) | 4.1 | — |
| Work Life @ 25°C | 2 days | — |
| Shelf Life @ -20°C | 240 days | — |
| Cure Method | UV + Heat | — |
| UV Cure Dose | 2,000 mJ/cm² @ 365 nm | — |
| Secondary Cure | >10 min @ 130°C | — |
| Hardness | — | Shore D 27 |
| Glass Transition Temp (°C) | — | 26 |
| CTE (ppm/°C, below Tg) | — | 108 |
| CTE (ppm/°C, above Tg) | — | 211 |
| Storage Modulus @ 25°C | — | 334 N/mm² (48,400 psi) |
LOCTITE ECCOBOND UF 9000AG-061 is specifically formulated for FCBGA and Cu pillar flip chip packaging, ensuring robust solder joint encapsulation under extreme electrothermal cycling from -65 °C to 150 °C. Its superior capillary flow also optimizes throughput in automated assembly lines for high-density ICs.
BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.
LOCTITE® ABLESTIK NCA 3218 is specifically formulated for ADAS optical modules, ensuring secure bonding in lens barrel to housing and lens housing to circuit board interfaces where dimensional accuracy and dielectric integrity are non negotiable.
Loctite® 3296, a dual cure (UV & thermal) adhesive, is engineered for active alignment assembly of ADAS cameras and LiDAR modules. Its optimized bonding to aluminum and FR4 substrates ensures secure fixation of optical components while enabling nanometer level alignment critical for high resolution imaging.
Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
Through partnerships with leading global brands, we deliver high-value materials, expert consulting, and optimized supply chains ensuring timely delivery, efficiency, and sustainable growth for our clients.
At Techniq, our mission is to connect cutting-edge materials, processes, and equipment with customer needs, enabling efficiency, reliability, and long-term value creation.
HQ address: Thu Duc, Ho Chi Minh City, VietNam
Website: techniq.vn
Email: info@techniq.vn
Tel: +84 88 990 19 29
Copyright © TECHNIQ VIETNAM
Leave your information or connect via Hotline, and our expert team will reach out immediately to provide professional consultation and customized solutions.
Email: info@techniq.vn
Our Technical Support Team is on hand from 8:30 AM to 5:30 PM (GMT+7).
For requests outside these hours, please submit your request form and we will respond at the earliest opportunity.