LOCTITE AA 3494
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- UV/Visible-Light Adhesive Cure
- 10-Second or Faster Fixture
- Electrically Insulating Acrylic Adhesive
Product Description
LOCTITE® AA 3494™ is a one-component, UV and visible light curing modified acrylic adhesive designed for bonding, sealing and potting applications. The transparent adhesive cures within seconds upon exposure to suitable ultraviolet light, producing tough, impact-resistant bonds with excellent resistance to humidity, water immersion and environmental aging. It is particularly well suited for glass bonding applications, including decorative glass assemblies, molded glass products and automotive lighting components where optical clarity and rapid production throughput are required.
Key Features & Benefits
- UV and visible light curing acrylic adhesive.
- Fast fixture and cure speeds for high-volume production.
- Excellent adhesion to glass and dissimilar substrates.
- Transparent cured appearance with refractive index close to glass.
- High resistance to humidity, water immersion and environmental exposure.
- Suitable for bonding, sealing and potting applications.
- One-component formulation requiring no mixing.
Recommended Applications
- Glass-to-glass bonding assemblies.
- Decorative and molded glass products.
- Automotive lighting component assembly.
- Glass-to-metal and glass-to-plastic bonding.
- UV-curable sealing and potting applications.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Modified Acrylic | — | UV / Visible Light Cure |
| Appearance | Transparent Liquid | — | Uncured |
| Components | One Part | — | No Mixing Required |
| Specific Gravity | 1.02 | — | 25°C |
| Density | 1.024 | g/cm³ | 20°C |
| Refractive Index | 1.48 | — | Uncured Material |
| Viscosity | 5,000 - 7,000 | mPa·s | Brookfield RVT, 25°C |
| Fixture Time | ≤10 | seconds | 365 nm UV, 6 mW/cm² |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Glass Transition Temperature (Tg) | 31 | °C | ISO 11357-2 |
| Shore Hardness | 65 | Shore D | ISO 868 |
| Tensile Strength | 22.5 | N/mm² | ISO 527-3 |
| Tensile Modulus | 520 | N/mm² | ISO 527-3 |
| Water Absorption | 4.08 | % | 2 h Boiling Water, ISO 62 |
| Volume Resistivity | 3.3 × 10¹⁵ | Ω·cm | IEC 60093 |
| Surface Resistivity | 3.0 × 10¹⁵ | Ω | IEC 60093 |
| Dielectric Breakdown Strength | 32.3 | kV/mm | IEC 60250 |
| Block Shear Strength (Steel to Glass) | 16.8 | N/mm² | ISO 13445 |
| VOC Content | <5.0 | % | 2010/75/EC |
