• Item Name: LOCTITE® AA 3963™
• Manufacturer: Henkel
• Technologies: Acrylic, Acrylated urethane
• Color: Transparent, colorless to straw
• Cure Type: Ultraviolet (UV) / Visible light
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE® AA 3963™ is a low-viscosity, UV/visible light-cured acrylic adhesive designed for rigid bonding applications. It is ideal for bonding metals and plastics, with excellent adhesion and resistance to humidity and accelerated aging. The product is suitable for medical device assembly and complies with ISO 10993 biocompatibility standards.
| Property | Value |
|---|---|
| Chemical Type | Acrylated urethane |
| Appearance | Transparent, colorless to straw |
| Specific Gravity (@ 25°C) | ~1.02 |
| Viscosity (mPa·s) | 250 – 450 |
| Fluorescence | Positive under UV light |
| Cure Method | UV/Visible light |
| Flash Point | See SDS |
| Property | Condition | Value |
|---|---|---|
| Fixture Time | 10 mW/cm² @ 405 nm | ≤10 sec |
| Tack Free Time | 1,400 mW/cm² @ 405 nm | 5 – 10 sec |
| Depth of Cure | 405 nm LED @ 1,400 mW/cm² | 9 mm (max) |
| Property | Value |
|---|---|
| Specific Gravity (@ 25°C) | ~1.12 |
| Linear Shrinkage | 3.15% |
| Shore Hardness (D) | 71 |
| Tensile Strength | 23.1 N/mm² (3,356 psi) |
| Tensile Modulus | 990 N/mm² (144,000 psi) |
| Elongation at Break | 38% |
| Glass Transition Temperature (Tg) | 55°C |
| Dielectric Strength | ~33.2 kV/mm |
| Substrate | Shear Strength (N/mm²) |
|---|---|
| Acrylic | 5.6 |
| Polycarbonate to Polycarbonate | 22.7 |
| Polycarbonate to PVC | 23 |
| Polycarbonate to Aluminum | 7.0 |
| Polycarbonate to Stainless Steel | 6.9 |
| Polypropylene (Plasma Treated) | 0.9 |
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