• Item Name: LOCTITE® ECCOBOND BF 4
• Manufacturer: Henkel
• Technologies: Epoxy
• Color: Black liquid
• Cure Type: Heat cure
• Package Size: Contact to Avantek for details.
• Shelf Life: 12 months
LOCTITE® ECCOBOND BF 4 is a black liquid epoxy adhesive designed for die attach and backfill applications in optoelectronic components. It provides strong adhesion to plastics, low outgassing, low moisture absorption, high Tg, and non-conductive properties. It is compatible with AA50 and AA50T adhesives for active alignment.
| Property | Value |
|---|---|
| Thixotropic index (0.5/5 rpm) | 1.9 |
| Viscosity (Brookfield CP51, 25°C) | 23,500 mPa·s (cP) @ 5 rpm |
| Work life @ 25°C | 24 hours |
| Shelf life @ -40°C | 365 days |
| Recommended Cure Schedule |
|---|
| 30 minutes @ 100°C |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion (ppm/°C) | 32 (Below Tg), 87 (Above Tg) |
| Glass Transition Temperature (Tg) | 94°C |
| Extractable Ionic Content (ppm) | Cl- <70, Na+ <10, K+ <5 |
| Weight Loss @ 300°C | 0.2% |
| Property | Value |
|---|---|
| Die Shear Strength @ 25°C (2×2 mm Si die on Ag/Cu LF) | 24 kg-f |
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Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
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