• Item Name: URALANE® 5773 A/B
• Manufacturer: Huntsman
• Technologies: Polyurethane (PU), Syntactic Adhesive
• Color: Dark amber
• Cure Type: 2 hours at 25°C + 1 hour at 100°C or ambient curing
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 6 months
URALANE® 5773 A/B is a two-component (2K) polyurethane adhesive that maintains high bond strength up to 121°C (250°F). It forms tough, heat-resistant bonds between metals and other substrates, particularly where different thermal expansion coefficients exist. The adhesive is dark amber in color and provides high bond strength, elongation, and durability under thermal aging. It is suitable for aerospace and automotive applications and is available in bulk packaging.
Bonding metal substrates with high thermal resistance requirements
Automotive and aerospace structural bonding
Suitable for materials with differing thermal expansion coefficients
Before Mixing / After Mixing
| Property | Test Method | Value (Before Mixing) | Value (After Mixing) |
|---|---|---|---|
| Physical Form | – | Paste | Paste |
| Density | ASTM D792 | 1.25 g/cm³ | 1.25 g/cm³ |
| Gel Time | – | – | 25–45 min at 25°C, 50 g |
| Tensile Lap Shear, Aluminum | ASTM D1002 | – | -55°C: 20.7 MPa; 25°C: 17.2 MPa; 121°C: 6.2 MPa |
| Tensile Lap Shear, Aluminum (Cured 2h RT + 1h 100°C) | ASTM D1002 | – | 25°C: 32.4 MPa; 100°C: 9.0 MPa; 149°C: 2.0 MPa |
| Tensile Lap Shear, Aluminum (30 days 63°C/95% RH) | ASTM D1002 | – | 25°C: 17.2 MPa; 121°C: 4.8 MPa |
| T-Peel, Aluminum | ASTM D1876 | – | 35 N/mm unconditioned; 35 N/mm after 30 days 63°C/95% RH |
| Tear Resistance | ASTM D624 (C) | – | 290 lbf/in |
| Elongation | ASTM D412 | – | 290 % |
| Durometer Hardness, Shore D | ASTM D2240 | – | 50 unconditioned; 50 after 30 days 63°C/95% RH |
| Thermal Aging, Tensile Lap Shear, Aluminum | ASTM D1002 | – | -55°C: 37.9–44.8 MPa; 25°C: 19.3–22 MPa; 121°C: 6.5–6.9 MPa |
| Thermal Aging, T-Peel, Aluminum | ASTM D1876 | – | 25°C: 60–90 N/mm |
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