Description
LORD® 7550 adhesive is an equal-mix, two-component clear urethane adhesive system used to bond Lexan®, ABS, polycarbonate and other plastics. This adhesive will also bond primed metals.
Features and Benefits:
- Non-Flammable – does not require explosion-proof equipment.
- Environmentally Friendly – does not contain ozone depleting chemicals.
- Environmentally Resistant – resists sunlight, weathering, humidity and salt spray.
- Chemically Resistant – solvent resistant when cured. Painting and most cleaning processes do not affect bond strength.
- Self-Leveling – flows into hard-to-reach spaces; excellent for bonding parts with tight tolerances
Typical Properties
| 7550-A Resin | 7550-C Curative | |
| Appearance | Clear Liquid | Clear Liquid |
| Viscosity, cP @ 77°F (25°C) | 1800 – 4000 | 6000 – 12,500 |
| Density, lb/gal ((kg/m^3) | 9.6-9.8 (1150-1174) | 9.0-9.4 (1078-1126) |
| Flash Point (Closed Cup), °F (°C) | 200 (>93)”}”>>200 (>93) | 200 (>93)”}”>>200 (>93) |
Typical Properties* of Resin Mixed with Curative
| Mix Ratio by Volume, Resin to Curative | 1:1 |
| Solids Content by Weight, % | 100 |
| Working Time, min @ 75°F (24°C) | 3-5 |
| Purge Time, min @ 75°F (24°C) | 2-3 |
| Time to Handling Strength, min @ 77°F (25°C) | 60 |
| Pak-50 |
 Chem-Set™ PAK-50 Gun |
 TAH 190-620 Static Mixer |
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