wood structure anticorrosion protective varnish

       SWD959 Series SH135 One component

          moisture cure polyurethane (rigid) system

         wood structure anticorrosion protective varnish

Descriptions             Villa with all wood structure is very popular in US, it uses mainly the regular timber without special treatment except some special parts. To avoid them being rotten or damaged by worms, it requires some protection to be done, especially those part exposure to the air. SWD Urethane Co., (USA) developed one component anticorrosion and protection varnish. It is a kind of colorless transparent product with super anti-corrosion, waterproof, and insect prevention properties, and with excellent decoration functions it has been the primary choice of wood structure protection and decoration.

Characteristics            High performance one component polyurea PU cures through absorption and reaction with air moisture. There are biuret bonds, urethane bond and hydrogen bond in the molecule structure. It has excellent mechanical and physical properties. In addition, it has outstanding comprehensive properties of chemical mediator resistance such as acid, alkali, salt, oil, also with good waterproof, mildew and insects and termites prevention. The film of coating is flat and shining, dense, and rigid, with high adhesive strength, wear resistance and impact resistance, and with super aging resistance, no dust, no crack, and no peel done.

Specifications 

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

Wear resistance（700g/500r）    10.6mg

Acid resistance

20%H₂SO₄ or 10%HCL, 30d       No rust, no bubbles,no peel done

Alkali resistance20%NaOH, 30d   No rust, no bubbles,no peel done

Salt resistance 80g/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                             Colorless and transparent

Luster                            Glazed

Density                           1.02g/cm³

Volume solid content                 77%±2%

VOC                              ≤185g/L 

Recommended dry film thickness       50-80um

Theoretical coverage                 0.07kg/㎡(calculated by the above solids percentage and dry film thickness of 50 microns)

Practical coverage                     Allow appropriate loss rate

Dry time                            1-3h

Overcoating intervals                   min: 3h; max: 29h

Overcoating method                   Airless spray, Air spray, Brush, Roller

Flash point                           58°C

 Recommend procedures

Application scopes          Anticorrosion and protection of architecture, landscape parks, municipal engineering and other field’s wooden structure.

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

Packing                   20kg/bucket; 25kg/bucket

Production area            Minhang District, City of Shanghai (22% 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.