LORD 7545A/B
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- Non-Sag Urethane Bonding
- 3 to 5-Minute Working Window
- 30-Minute Handling Time
Product Description
LORD® 7545-A/B Urethane Adhesive is an equal-mix, two-component structural urethane adhesive system for bonding fiberglass-reinforced plastic (FRP), sheet molding compound (SMC), other plastics, primed metals and supported dissimilar substrates. The 100% solids system has non-sag paste rheology for bead placement on vertical and overhead joints. When paired with LORD® 7545-B curative, it provides a 3–5 minute working time and reaches handling strength in approximately 30 minutes at 75°F (24°C).
Key Features
- Equal-volume mixing at a 1:1 resin-to-curative ratio for cartridge or meter/mix/dispense processing.
- Fast A/B processing window with a 3–5 minute working time and approximately 30-minute handling time at 75°F (24°C).
- Non-sag, environmentally resistant system that maintains bead placement and resists weathering, humidity, salt spray and solvents after cure.
Applications / Suitable for
- FRP and SMC structural bonding
- Plastic-to-plastic assemblies
- Composite or plastic bonding to primed metals
- Vertical, overhead and supported mixed-material joints
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-Supplied / Before-Processing Properties
Typical component and mixed-system properties for LORD® 7545-A/B Urethane Adhesive. Values are typical and are not intended for specification purposes.
| Property | 7545-A Resin | 7545-B Curative | Mixed System | Method / Condition |
|---|---|---|---|---|
| Appearance | Brown paste | Off-white or black paste | — | Typical |
| Viscosity | 25,000–70,000 cP | 230,000–650,000 cP | — | Brookfield at 77°F (25°C) |
| Density | 12.5–12.8 lb/gal (1498–1534 kg/m³) |
10.8–11.2 lb/gal (1294–1342 kg/m³) |
— | Typical |
| Flash Point | >200°F (>93°C) |
>200°F (>93°C) |
— | Closed cup |
| Mix Ratio | 1 part | 1 part by volume 0.87 part by weight |
1:1 by volume 1:0.87 by weight |
Resin to curative |
| Solids Content by Weight | — | — | 100% | Mixed adhesive system |
| Working Time | — | — | 3–5 minutes | At 75°F (24°C); LORD® 7545-A/B configuration |
| Time to Handling Strength | — | — | 30 minutes | At 75°F (24°C); LORD® 7545-A/B configuration |
| Recommended Bondline Thickness | — | — | 10–40 mil (254–1016 µm) |
For optimum adhesion |
| Shelf Life | 6 months | 6 months | — | Store unopened at or below 77°F (25°C) |
As-Supplied / Before-Processing Properties
Typical component and mixed-system properties for LORD® 7545-A/B Urethane Adhesive. Values are typical and are not intended for specification purposes.
| Property | 7545-A Resin | 7545-B Curative | Mixed System | Method / Condition |
|---|---|---|---|---|
| Appearance | Brown paste | Off-white or black paste | — | Typical |
| Viscosity | 25,000–70,000 cP | 230,000–650,000 cP | — | Brookfield at 77°F (25°C) |
| Density | 12.5–12.8 lb/gal (1498–1534 kg/m³) |
10.8–11.2 lb/gal (1294–1342 kg/m³) |
— | Typical |
| Flash Point | >200°F (>93°C) |
>200°F (>93°C) |
— | Closed cup |
| Mix Ratio | 1 part | 1 part by volume 0.87 part by weight |
1:1 by volume 1:0.87 by weight |
Resin to curative |
| Solids Content by Weight | — | — | 100% | Mixed adhesive system |
| Working Time | — | — | 3–5 minutes | At 75°F (24°C); LORD® 7545-A/B configuration |
| Time to Handling Strength | — | — | 30 minutes | At 75°F (24°C); LORD® 7545-A/B configuration |
| Recommended Bondline Thickness | — | — | 10–40 mil (254–1016 µm) |
For optimum adhesion |
| Shelf Life | 6 months | 6 months | — | Store unopened at or below 77°F (25°C) |
