Description
Sikaflex®-296 is a one-component polyurethane direct glazing adhesive engineered for bonding mineral glass windows in marine shipbuilding applications. This moisture-curing, non-sag adhesive provides elastic gap-filling performance and is designed for structural glazing and exposed joint sealing in demanding marine environments.
Key Features
- One-component polyurethane direct glazing adhesive for marine glass bonding
- Designed for mineral glass window installations in shipbuilding
- Moisture-curing formulation for durable marine performance
- Elastic, gap-filling properties for glazing applications
- Very good non-sag characteristics for vertical and overhead use
- Resistant to weathering and aging
- Solvent-free and PVC-free formulation
- Low odor and suitable for manual or pump application
Technical Specifications
| Specification | Value |
|---|---|
| Chemical Base | 1-component polyurethane |
| Color | Black |
| Cure Mechanism | Moisture-curing |
| Density (uncured) | 1.2 kg/l (10.0 lb/gal) |
| Application Temperature | 10 to 35 °C (50 to 95 °F) |
| Skin Time | 45 minutes |
| Open Time | 30 minutes |
| Shrinkage | 1% |
| Shore A Hardness | 45 |
| Tensile Strength | 6 MPa (870 psi) |
| Elongation at Break | 450% |
| Tear Propagation Resistance | 14 N/mm (80 pli) |
| Tensile Lap-Shear Strength | 4.5 MPa (650 psi) |
| Service Temperature | -40 to 90 °C (-40 to 194 °F) |
| Shelf Life (Unipack) | 9 months |
Compatible Substrates and Materials
- Mineral glass
- Marine window systems
Application Guidance
Surfaces must be clean, dry, and free from grease, oil, dust, and contaminants prior to application. Sikaflex®-296 can be applied between 10 °C and 35 °C, with optimal performance between 15 °C and 25 °C. Apply using manual or powered dispensing equipment and ensure glazing components are installed within the open time. Tooling should be completed within the skin time, and adhesion testing on actual substrates is recommended before full application.
Typical Use Cases
- Direct glazing of marine glass windows
- Bonding mineral glass in shipbuilding
- Marine window installation and replacement
- Exposed joint sealing in glazing systems
Target Industries and Buyers
- Shipbuilders
- Marine OEM manufacturers
- Marine repair and refit yards
- Glazing installation professionals
- Industrial marine assembly teams
Performance Advantages
Within the marine glazing adhesive category, Sikaflex®-296 delivers high mechanical strength and elastic performance for bonding mineral glass windows. Its formulation supports durable adhesion, gap-filling capability, and reliable performance in marine environments where structural glazing and environmental resistance are required.
Common Questions
Q: What is Sikaflex®-296 used for?
A: It is used for direct glazing of mineral glass windows in marine shipbuilding applications.
Q: What type of glass is it designed for?
A: It is designed for mineral glass used in marine window systems.
Q: How does it cure?
A: It cures by reacting with atmospheric moisture.
Q: Can it be used for exposed joints?
A: Yes, it can be tooled to a fine finish and is suitable for exposed joints.
Q: What is the working time after application?
A: The open time is approximately 30 minutes under standard conditions.
Q: What is the recommended application temperature range?
A: The application range is 10 °C to 35 °C (50 °F to 95 °F).
Q: Is it suitable for professional use?
A: Yes, it is intended for experienced professional users with application testing recommended.
Reviews
There are no reviews yet.