Item Name: LOCTITE DSP 3331
Manufacturer: Henkel
Technologies: Acrylate
Color: Colorless to yellowish liquid
Cure Type: UV LED
Package Size: Contact to Techniq VN for details.
Shelf Life: 6 months
LOCTITE DSP 3331 is a UV-curable acrylate adhesive designed as an encapsulant. It appears as a colorless to yellowish liquid and offers fast UV curing, high flexibility, excellent adhesion to polyimide (PI), and good moisture resistance. The material is formulated to enhance crack resistance, prevent delamination, and improve overall package reliability in advanced display technologies.
Encapsulation of OLED and LCD module assemblies
Specifically suited for micro-patterned PI substrates in OLED modules
Enhances durability and reliability of thin, flexible display packages
| Property | Still Not Mixed (Uncured) | After Mixed / Cured |
|---|---|---|
| Appearance | Colorless to yellowish liquid | Solid cured film |
| Viscosity (mPa∙s, 15 s⁻¹) | 1,464 | — |
| Density (g/cm³) | 1.04 | — |
| Solids Content (%) | 100 | — |
| Shelf Life @ 25°C (days) | 180 | — |
| Cure Method | UV LED / Mercury Vapor / Electrodeless lamp | — |
| UV Dose (mJ/cm²) | 1,500 (recommended) | — |
| Glass Transition Temp (°C) | — | 38.1 |
| Tensile Modulus @ 25°C (MPa) | — | 87.8 |
| Elongation at Break (%) | — | 247.5 |
| Tensile Lap Shear Strength (N/mm², PC substrate) | — | 9 |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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