LORD 852/25GB
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
- Welding/Fastener Replacement Bonding
- 20 to 25-Minute Working Time
- Prepared/Unprepared Metal/FRP/Plastic Bonding
Product Description
LORD® 852S/25GB Toughened Structural Acrylic Adhesive is a two-component structural acrylic adhesive system consisting of LORD® 852S Adhesive and LORD® Accelerator 25GB. It is designed to replace welding, brazing, riveting and other mechanical fastening methods while providing structural bonding of prepared and unprepared metals, polymer composite substrates such as FRP, and selected engineered plastics. The toughened formulation offers excellent impact and peel strength together with extended working time to accommodate a wider range of assembly processes.
Key Features
- Replaces welding, brazing, riveting and other mechanical fastening methods.
- Bonds prepared and unprepared metals, FRP and selected engineered plastics with minimal substrate preparation.
- Extended working time of 20–25 minutes to support larger or more complex assemblies.
- High impact and peel strength with 100% elongation for improved fatigue resistance.
- Service temperature from -40°F to +300°F (-40°C to +149°C).
- Resists dilute acids, alkalis, solvents, greases, oils, moisture, salt spray, weathering and indirect UV exposure.
Suitable For
- Structural metal bonding
- FRP and composite bonding
- Engineered plastic bonding
- Automotive assembly
- Industrial structural assembly
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value |
|---|---|
| Appearance | Amber paste |
| Viscosity | 150,000–550,000 cP @ 77°F (25°C), Brookfield |
| Density | 8.00–8.30 lb/gal (959–995 kg/m³) |
| Flash Point | 59°F (15°C), Seta Closed Cup |
| Mix Ratio | 10:1 by volume (Adhesive : LORD® Accelerator 25GB) |
| Mixed Appearance | Red paste |
| Working Time | 20–25 minutes @ 75°F (24°C) |
| Time to Handling Strength | 50–70 minutes @ 75°F (24°C), 50 psi shear |
| Full Cure Time | 5 hours @ 75°F (24°C) |
| Solids Content | 100% |
After-Processing / Final-State Properties
| Property | Value | Test Method |
|---|---|---|
| Hardness | Shore D 67 | — |
| Tensile Strength at Break | 2,683 psi (18.5 MPa) | ASTM D638, modified |
| Elongation | 100% | ASTM D638, modified |
| Young's Modulus | 125,000 psi (862 MPa) | ASTM D638, modified |
| Glass Transition Temperature (Tg) | 178°F (81°C) | ASTM E1640-99 (DMA) |
