Paint and Coatings

SWD952 Series SH121 One component

  moisture cure polyurethane (elastic) system

        crude oil storage tank special anticorrosion coating

Descriptions                In the case of global oil resources increasingly being scarce, all the countries worldwide are reserving crude oil ahead. The international universal crude oil reserve is designed for metal container tank. In order to protect the internal and external metal surface of the oil tank and reducing the corrosion rate of metal surfaces and expanding its life, in general the oil tank wall is coated with a layer of anti-corrosion coating. Internal coating not only prevents steel oil tanks corrosion, extend the clean cycle operation, saving labor work, costs and time, but also reduce the metal material catalyzed on oil. Therefore, the oil storage tank anticorrosion internal coating has been gained more extensive attention by the national petroleum industry.

Characteristics              Petrochemical crude oil storage tank special internal and external heavy duty anticorrosion coating was developed by SWD Urethane co., USA in the 1980s. With excellent adhesive strength and mechanical physical properties on metal substrate, high anticorrosion and temperature variation on kinds of medium, such as acid, alkali, salt, oil, water and solvent, etc., it has been widely used in American petroleum, petrochemicals and power industry and turned into the preferred durability superior tank anticorrosion products of the international oil reserve.

Specifications

Adhesive strength                            11.2Mpa

Impact resistance                             ≥50kg•cm

Tensile strength                              16Mpa

Elongation                                  350%

Temperature variation                         -40------+180℃

Wear resistance（700g/500r）                  10mg

Acid resistance 30%H₂SO₄ or 10%HCI, 30d        no rust no bubbles no peel

Alkali resistance 25%NaOH, 30d                 no rust no bubbles no peel

Salt resistance 80g/L, 30d                       no rust no bubbles no peel

Salt spray resistance 1000h                      no rust no bubbles no peel

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

Data of performance

Color                        Multiple colors as customers’ need

Luster                        half glazed

Density                       1.03g/cm³

Volume solid content            81%±2%

VOC                         ≤171g/L

Recommended dry film thickness   150-250μm（system）

Theoretical coverage             0.20kg/sqm (calculated by the above solids percentage and dry film thickness of 150 microns)

Practical coverage                Allow appropriate loss rate

Dry time                       1-3h

Overcoating interval              min: 3h, max: 24h

Overcoating method              Airless spray, Air spray, Brush, Roller

Flash point                      51℃

Recommend procedures      Tank internal wall anticorrosion matching program:

Application scope          various crude oil storage tank, oil tanks

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

Packing                    20kg/bucket. 25kg/bucket

Production area              Minhang District, City of Shanghai （28% 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. 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.