Description
Araldite® 2028-1 is a fast-curing, UV-stable polyurethane adhesive designed for transparent, high-strength bonding in signage, LED, and plastic applications. With excellent clarity and flexibility, it is ideal for joining trim caps to polycarbonate, potting LEDs, and bonding dissimilar substrates. This non-yellowing adhesive cures at room temperature with a 6-minute pot life, supporting fast production cycles and invisible bond lines.
Trusted for LED, Trim Cap, and Display Assembly
Engineers and installers choose Araldite 2028-1 for its superior optical clarity and outdoor durability. Whether used in traffic signal housings, digital signage, or illuminated trim cap bonding, it maintains appearance and performance under UV, heat, and humidity stress.
Key Features & Benefits
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Transparent polyurethane adhesive for invisible bonds
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UV stable with excellent yellowing resistance
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Fast 6–8 minute working time and 30-minute fixture time
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Bonds plastic, metal, and glass substrates reliably
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Flexible and impact-resistant after cure
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Performs in hot, humid, and dusty environments
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BPA-free and non-CMR formulation enhances safety
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Compatible with dual cartridge static mixing systems
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Ideal for robotic and manual dispensing setups
Common Applications
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Trim cap to polycarbonate bonding in channel letters
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LED potting and light assembly (clear encapsulation)
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Traffic light and signage housing assembly
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Bonding transparent plastics, coated metals, and composites
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Repair bonding at elevated ambient temperatures
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Two-part polyurethane |
| Appearance (mixed) | Transparent |
| Working Time (Pot Life) | 6–8 minutes |
| Fixture Time | 30 minutes |
| Cure Schedule (Room Temp) | Full cure ~5 hours |
| Lap Shear Strength | > 8 MPa (Aluminum, 23°C) |
| Elongation at Break | ~60% |
| Tensile Strength | ~2,320 psi (16 MPa) |
| Tensile Modulus | ~2 GPa |
| Glass Transition Temp (Tg) | ~13°C |
| Max Operating Temp | 122°F (50°C) |
| Shore Hardness | Flexible |
| Color | Transparent |
| Cartridge Type | Dual cartridge with static mixer |
Compliance & Certifications
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UV-stable per Atlas 500hr accelerated sun test
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BPA-free and non-CMR formulation
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Manufactured under Huntsman quality control standards
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Suitable for use in consumer, electrical, and outdoor products
Compatible Substrates
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Polycarbonate
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PMMA (Acrylic)
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PVC and ABS
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Coated and bare metals
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LED encapsulation materials
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Composite plastics and painted surfaces
Packaging & Ordering Info
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Supplied in dual cartridges with integrated mixing tip
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Compatible with standard static mix dispensers
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Store at 15–25°C in sealed packaging
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Long shelf life when unopened
Need a clear, fast-curing adhesive for signage, lighting, or display bonding? Contact our technical team for help selecting the right adhesive, requesting a sample, or ordering in bulk.
Phone: 800-220-1966 | Email: [email protected]
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