seawater desalination caisson special polyurea anticorrosion coating

Paint and Coatings

   SWD900 Series SH104 Two components

         spray elastomer seawater desalination caisson special polyurea anticorrosion wear resistance coating

 Descriptions               Due to the shortage of water resource, seawater desalination procedure has gained more and more attention in recent years, and relative projects of that have also been increasing each year. As a perfect combination of  new technique, new material and new procedure, Polyurea Spray Elastomer Anticorrosion Waterproof Coating, with its high physical performance and super anticorrosion function is closely concerned in the anticorrosion and waterproof field and is widely applied to significant programs. According to the using environment of large caisson in seawater desalination, SWD Urethane Co., USA developed Polyurea anticorrosion coating with its excellent corrosion resistance to seawater, and cathodic disbondment strength, has been widely applied among many projects in Australia and worldwide.­                                                                                                                                                                                                                                                                                                                                                                                                                                                          

Characteristics             It has high reactivity, rapidly cure, able to spray forming on any bending face of bevel and vertical side without fall down problem. Dense and seamless material, insulated seawater and oxygen, strong adhensive strength with metal base material, good wear resistance and impact resistance. Stable in chemical mediator, excellent comprehensive anticorrosion performance, outstanding cathodic disbondment, able to stand long time immersing in seawater, no bubbles, no crack, no peel off.

Specifications        

Adhesive strength (steel base)    11.6Mpa

Tear strength                  80.6kN/m

Tensile strength               18Mpa

Elongation                   480%

Penetrate resistance            2.5Mpa

Temperature variation           -40-----+120°C

Wear resistance (700g/500r)      5mg

Acid resistance

10%H₂SO_{4, 10}%HCL, 30d         No rust, no bubbles,no peel done

Alkali resistance10%NaOH, 30d   No rust, no bubbles,no peel done

Salt resistance 50g/L, 30d         No rust, no bubbles,no peel done

Salt spray resistance, 2000h        No rust, no bubbles,no peel done

Oil resistance

0#diesel, crude oil, 30d           No rust, no bubbles,no peel done

Data of performance

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

 Recommend procedures

Application Scopes         Anticorrosion and waterproof of seawater destination caisson and ship facilities.

Shelf life                  6 months (Indoor with dry and cool conditions)   

Packing                    component A : 220kg/bucket; component B: 200kg/bucket

Production area             Minhang District, City of Shanghai (17%of the raw materials imported from SWD US)

Security                   To apply this product must be accordance with the relevant national regulation of sanitation, safety and environment. Avoid contacting the wet coating.

Global applicability         Our company aims to provide worldwide customers the same coatings, but sometimes, some small adjustments are made to satisfy each region conditions and international norms, in this case, an alternative product data will be provided.    

Integrity declaration         Our company guarantees the reality of the listed data, due to the diversity and variability of the application environment, please test and verify it before use. We don’t take any other responsibilities except the coating quality self and reserve the right of modification the listed data without prior notice.