SWD POLYURETHANE (SHANGHAI) CO., LTD

     SWD952 Series SH111 One component moisture     cure polyurea polyurethane (elastic) system

     sewage treatment pool anticorrosion waterproof coating

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Descriptions              The sewage corrosion process mechanism is very complex. It is variable with the sewage composition and water temperature. The corrosion grade is also different with the content percentage of harmful substances in sewage. Therefore, it’s essential to understand the composition of sewage then completely solve corrosion problems to protect the concrete pool structure and its equipment. Sewage treatment consist three main methods of physical, chemical and biological process that are using a variety of technical procedure to separate the pollutants from wastewater, and convert it into harmless substances then purified. Irrespective of which treatment be choosing, the anticorrosion of sewage pool and equipment is very important. So choose an effective anticorrosion coating is most critical. The sewage treatment pool anticorrosion waterproof coating developed by SWD Urethane Co., USA is the mature products used for many years in the US market. It performed far superior effective over the domestic modified tar asphalt antisepsis coating series. It is able to extend the life of pool to more than 30 years.

Characteristics              SWD sewage treatment pool anticorrosion waterproof coating is one component moisture cure environmental friendly hand brushable polyurea products. It’s very stable in contact with corrosion medium such as various industry sewage and waste gases without be dissolution, swelling or decomposition. It will not react with the media to generate new hazardous substances. Coating is dense, flexible, with high adhesive strength on substrate, excellent penetration resistance, able to effectively prevent various liquid and gas penetration. With high erosion resistance, impact resistance, anti-aging performances, the coating ensures that the sewage pool has no crack, damage, peel, pulverization, etc. within its life period.

Specifications

Adhesive strength                               3.8 Mpa( or substrate broken)

Impact strength                                  ≥50kg•cm

Tensile strength                                  18Mpa

Elongation                                      360%

Penetrate resistance                               2.8 Mpa

Temperature variation                             -40------+160℃

Wear resistance（700g/500r）                      10mg

Acid resistance (40%H₂SO₄ or 15%HCI, 30d)           no rust no bubbles no peel

Alkali resistance 50%NaOH, 30d                      no rust no bubbles no peel

Salt resistance 150g/L, 30d                           no rust no bubbles no peel

Salt spray resistance 2000h                           no rust no bubbles no peel

Oil resistance 0# diesel crude oil 30d                   no rust no bubbles no peel

Date of performance

Color                        Multiple colors as customers’ need

Luster                        half glazed

Density                       1.10g/cm

Volume solid content            80%±2%

VOC                         ≤176g/L

Recommended dry film thickness   200-350μm

Theoretical coverage             0.38kg/sqm (calculated by the above solids percentage and dry film thickness of 275 microns)

Practical coverage                Allow appropriate loss rate

Dry time                       1-3h

Overcoating interval              min: 3h, max: 28h

Overcoating method              Airless spray, Air spray, Brush, Roller

Flash point                      59℃

 Recommend procedures                      

Application scopes           Anticorrosion and waterproof of various industry plants, waste water treatment system, urban sewage treatment pool, industries roof.

Shelf life                  10 months (Indoor with dry and cool conditions)

Packing                    20kg/bucket, 25kg/bucket

Production area             Minhang District, City of Shanghai (45% of raw materials imported from SWD US)

Security                    To apply this product must be accordance with the relevant     national regulation of sanitation, safety and environment protection. Do not even contact the surface of wet coating.

Global applicability           Our company aims to provide worldwide customers the same coating products, but some suitable adjustments will be made to follow up different 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 modifying the listed data without prior notice.