Description
SikaPower®-880 is a two-component epoxy structural adhesive designed for high-strength bonding in industrial and transportation assemblies. This toughened, fast-curing adhesive features a thixotropic, gap-filling formulation that cures at room temperature, making it suitable for structural joints requiring durability, impact resistance, and reliable adhesion across metal and composite substrates.
Key Features
- Two-component epoxy structural adhesive for high-strength bonding
- Fast-curing system with room-temperature cure capability
- High strength with resistance to fatigue and impact loads
- Thixotropic, non-sag consistency for controlled application
- Gap-filling properties for structural joint applications
- Contains integrated glass beads for controlled bond line thickness
- Long open time to support assembly processes
- Solvent-free formulation
Technical Specifications
| Specification | Value |
|---|---|
| Chemical Base | Epoxy (A) / Amine (B) |
| Color (Mixed) | Grey |
| Density (mixed) | 1.26 kg/l (10.5 lb/gal) |
| Mix Ratio (by volume) | 100 : 100 |
| Mix Ratio (by weight) | 100 : 102 |
| Consistency | Thixotropic paste |
| Application Temperature | 15 to 30 °C (59 to 86 °F) |
| Open Time | 45 minutes |
| Handling Time | 5 hours |
| Shore D Hardness | 70 |
| Tensile Strength | 22 MPa (3,200 psi) |
| Elongation at Break | 3% |
| Tensile Lap-Shear Strength | 23 MPa (3,350 psi) |
| Glass Transition Temperature | 77 °C (171 °F) |
| Shelf Life | 12 months |
Compatible Substrates and Materials
- Steel
- Aluminum
- Metal substrates
- GFRP composites
- CFRP composites
Application Guidance
Surfaces must be clean, dry, and free from grease, oil, and contaminants prior to application. Dispense using a 1:1 dual cartridge system and static mixer, ensuring proper mixing before use. Apply within the open time and assemble parts accordingly. Cure occurs at room temperature, with faster cure possible at elevated temperatures. Pre-testing on actual substrates is recommended to confirm adhesion and process compatibility.
Typical Use Cases
- Structural bonding in transportation assemblies
- Metal-to-metal and metal-to-composite bonding
- Hybrid joining with welding, riveting, or clinching
- Industrial equipment assembly
- Repair of structural components
Target Industries and Buyers
- Transportation and vehicle manufacturers
- Industrial equipment manufacturers
- Composite fabrication and assembly
- OEM production and assembly operations
- Maintenance and repair professionals
Performance Advantages
Within the structural adhesive category, SikaPower®-880 provides a combination of high strength, toughness, and process-friendly working time. Its gap-filling capability and resistance to fatigue and impact make it suitable for demanding structural bonding applications, particularly where mixed-material assemblies and dynamic loads are present.
Common Questions
Q: What type of adhesive is SikaPower®-880?
A: It is a two-component epoxy structural adhesive.
Q: What is the mix ratio?
A: The mix ratio is 1:1 by volume (100:102 by weight).
Q: How long is the working time?
A: The open time is approximately 45 minutes.
Q: What substrates can it bond?
A: It is suitable for metals such as steel and aluminum, as well as composite materials like GFRP and CFRP.
Q: Does it require heat to cure?
A: No, it cures at room temperature, though elevated temperatures can accelerate curing.
Q: Is it suitable for structural applications?
A: Yes, it is designed for structural joints requiring high strength and toughness.
Q: What is the handling time after application?
A: The handling time is approximately 5 hours under standard conditions.
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