Sikaflex®-591 Marine Adhesive Sealant, 300 mL
Sikaflex®-591 is an elastic, 1-component silane terminated polymer (STP) adhesive sealant that cures on exposure to atmospheric moisture. It is highly colour-stable and mould-resistant, suitable for interior and exterior sealing in the marine industry, and bonds to a wide range of substrates with minimal surface preparation.
Features
- Very high colour stability and mould resistance
- Very good weathering resistance, interior and exterior
- Good adhesion with minimal surface preparation
- Solvent-, isocyanate-, phthalate- and PVC-free
- Suitable for below-the-waterline applications
Recommended Uses
- Interior and exterior marine sealing
- Metals (especially aluminum), metal primers and paint coatings
- Sheet steel, ceramics and certain plastics
Light colours may discolour in contact with teak. Test before use on materials prone to stress cracking. Suitable for experienced professional users. Test on the actual substrates and conditions to confirm adhesion and material compatibility.
Specifications
| Property | Details |
|---|---|
| Brand | Sika |
| Chemical base | Silane terminated polymer (STP) |
| Colours | Black, white |
| Size | 300 mL cartridge |
| Cure mechanism | Moisture-curing |
| Density (uncured) | 1.5 kg/L |
| Application temperature | 5–40 °C |
| Skin time | 35 minutes (23 °C / 50% RH) |
| Open time | 20 minutes (23 °C / 50% RH) |
| Shore A hardness | 45 |
| Tensile strength | 2.2 MPa |
| Elongation at break | 500% |
| Tear propagation resistance | 15 N/mm |
| Shrinkage | 1% |
| Service temperature | -50 to 80 °C |
| Shelf life | 12 months (stored below 25 °C) |
Data Sheets