SikaPower®-880
SikaPower®-880 is a thixotropic, fast curing, gap-filling 2-component epoxy adhesive, which cures at room temperature. It is designed for use in structural joints, where toughness and high strength are required. SikaPower®-880 is particularly suitable for bonding metallic substrates, like steel and aluminium, as well as composite substrates, like GFRP and CFRP laminates. The adhesive has very good application properties and shows elevated heat resistance.
- High strength and high resistance to fatigue and impacts
- Long open time
- Fast curing at room temperature
- Very good non-sag and application properties
- Contains glass beads of 0.3 mm to ensure optimal bonding thickness
- Does not contain solvents or PVC
PRODUCT BENEFITS
- High strength and high resistance to fatigue and impacts
- Long open time
- Fast curing at room temperature
- Very good non-sag and application properties
- Contains glass beads of 0.3 mm to ensure optimal bonding thickness
- Does not contain solvents or PVC
Areas of Application
SikaPower®-880 is suitable for fast assembly bonding applications in transportation and general industry, especially if high toughness and strength is required. It can also be used for repair applications as well as in hybrid joints in combination with spot welding, riveting or clinching. This product is suitable for professional experienced users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.Product Details
| Properties |
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| Chemical base |
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| Color (CQP001-1) |
mixed |
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| Density |
mixed (calculated) |
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| Mixing ratio | by volume by weight | 100 : 100 100 : 102 | |||
| Viscosity (CQP029-4) | at 10 s-1 |
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| Consistency | Thixotropic paste | ||||
| Application temperature | 15 ─ 30 °C | ||||
| Open time (CQP046-11 / ISO 4587) | 45 minutes A, B | ||||
| Handling time (CQP046-11 / ISO 4587) | 5 hours A, B | ||||
| Shore D hardness (CQP023-1 / ISO 48-4) | 70 C | ||||
| Tensile strength (CQP543-1 / ISO 527) | 22 MPa A, C | ||||
| E-Modulus (CQP543-1 / ISO 527) | 2 100 MPa A, C | ||||
| Elongation at break (CQP543-1 / ISO 527) | 3 % A, C | ||||
| Tensile lap-shear strength (CQP046-9 / ISO 4587) | 23 MPa A, B, C | ||||
| Glass transition temperature (CQP509-1 / ISO 6721) | 77 °C C | ||||
| Shelf life (CQP016-1) | 12 months D |
| CQP = Corporate Quality Procedure | A) 23 °C / 50 % r.h. | B) adhesive layer: 25 x 12.5 x 0.3 mm / on steel |
| C) cured for 1 week at 23 °C | D) stored between 10 and 30 °C |
CURE MECHANISM
SikaPower®-880 cures by a fast chemical reaction of the two components at room temperature. The cure rate can be further accelerated at higher temperatures, e.g., using ovens or infrared lamps. The final glass transition temperature, as well as the tensile and shear strengths, may be increased with higher curing temperature.
CHEMICAL RESISTANCE
In view of potential chemical or thermal exposure, it is required to conduct a project related testing.
Application
Surface preparation
Surfaces must be clean, dry and free from grease, oil and dust. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. All pre-treatment steps must be confirmed by preliminary tests on original substrates considering specific conditions in the assembly process.
Application
SikaPower®-880 is dispensed from 1:1 dual cartridges with adequate dispensers. The use of electric or pneumatic guns with piston-driven plungers is recommended. Extrude adhesive without mixer to equalize the filling levels. Attach the mixer and dispose of the first few cm of the bead before the application.
For advice on selecting and setting up a suitable pump system, contact the System Engineering Department of Sika Industry.
Removal
Uncured SikaPower®-880 may be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Once cured, the material can only be removed mechanically.
Hands and exposed skin have to be washed immediately using hand wipes such as Sika® Cleaner-350H cleaning towels or a suitable industrial hand cleaner and water.
Do not use solvents on skin.
STORAGE CONDITIONS
SikaPower®-880 has to be kept between 10 °C and 30 °C in a dry place. Do not expose it to direct sunlight or frost. After opening of the packaging, the contents have to be protected against humidity.