SWD9001 seawater desalination caisson special polyurea anticorrosion wear resistance protective coating
0086-21-51905316
3rd Floor, No. 38, Lane 1688, Lianhang Rd., Minhang District, Shanghai, China (Mainland)
Due to the shortage of water resource, seawater desalination procedure has been increasingly popular in many ocean projects. Large scale caissons are the main equipment of the seawater desalination project which required the service life reach to more than 50 years. Therefore the crucial performance of coatings is to prevent the caisson being corrosion damaged in long-term application. SWD seawater desalination caisson special polyurea coating has excellent performance of seawater anticorrosion, soak stable and cathodic disbondment resistant. It has been widely used on many large seawater desalination projects in the China, USA and Australia.
SWD9001 has high reactivity and rapid cure properties which is able to be sprayed forming on any bending surfaces of slopes and vertical side without sagging or falling down problems. The coating film is flexible and insulated water and oxygen with high adhesive strength and cathodic disbondment resistance. It has excellent properties of anticorrosion, waterproof, anti-aging resistance, no peel off, no crack or no powder under long-term seawater immersion conditions.
Adhesive strength (concrete base) | 3.2Mpa (or substrate broken) |
Adhesive strength (steel base) | 11.3Mpa |
Tear strength | 85.6kN/m |
Tensile strength | 17.8Mpa |
Elongation | 460% |
Penetrate resistance | 2.3Mpa |
Temperature variation | -40 ~ +120°C |
Wear resistance (700g/500r) | 6.5mg |
Acid resistance | ||
10%H2SO4, 10%HCL, 30d | No rust, no bubbles,no peel done | |
Salt resistance 30g/L, 30d | No rust, no bubbles,no peel done | |
Alkali resistance10%NaOH, 30d | No rust, no bubbles,no peel done | |
Salt spray resistance, 3000h | No rust, no bubbles,no peel done | |
Oil resistance | ||
0#diesel, crude oil, 30d | No rust, no bubbles,no peel done | |
Color | Multiple colors as customers' need |
Luster | glazed |
Density | 1.01g/cm3 |
Volume solid contents | 99%±1% |
VOC | 0 |
Recommended dry film thickness | 2000-3000mm |
Theoretical coverage | 2.04 kg/sqm (calculated by the above solids percentage and dry film thickness of 2000 microns) |
Practical coverage | allow appropriate loss rate |
Dry time | 5-20s |
Overcoating intervals | min: 1h; max: 24h |
Overcoating method | Special polyurea spray equipment (imported or local support) |
Flash point | 200°C |
No. | Name of products | Layers | Dry film thickness(μm) |
1 | SWD polyurea special primer | 1 | 50 |
2 | SWD seawater destination caisson special polyurea | 1 | 2500 |
Total | ---- | 2 | 2550 |
Anticorrosion waterproof protection of seawater destination caissons, offshore drilling platform, marine terminal and other marine facilities.
6 months (Indoor with dry and cool conditions)
component A : 220kg/bucket
component B : 200kg/bucket
