SWD8028 polyaspartic anticorrosion coating


SWD8028 polyaspartic anticorrosion coating

short description:

SWD8028 is a reaction polymerization of polyaspartic ester and polyisocyanate, since polyaspartic is an aliphatic sterically hindered secondary amine, and the curing component selected is an aliphatic polyisocyanate, the coating has high gloss and color retention property that is suitable for long-term outdoor use. When the secondary amine group reacts with the isocyanate group, a high-crosslinking density, cross-interpenetrating polymer chain network structure is formed, which also makes the product have good physical and chemical properties.

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  • Product Detail

    Product Tags

    Features and benefits

    * high solids low density, with good leveling, the coating film is tough, dense, full light and bright colors

    * excellent adhesive strength, good compatible with polyurethane, epoxy and other coating film.

    * high hardness, good scratch resistance and stain resistance

    * excellent abrasion resistance, impact resistance

    * excellent anticorrosion property, resist to acid, alkali, salt and others.

    * no discoloration, UV resistance, no yellowing, no powdering, aging resistance, with excellent weather resistance and gloss and color retention property

    * can be applied directly to the surface of metal surface (DTM)

    * this product is environmentally friendly and contains no benzene solvents and lead compounds


    Product information

    Item A component B component
    Appearance light yellow liquid Color adjustable
    Specific gravity(g/m³) 1.04 1.50
    Viscosity (cps)@25℃ 40-60 100-200
    Solid content (%)  58 90
    Mix ratio (by weight)  1 1
    Surface dry time (h) 1
    Pot life (h)@25℃ 1
    Theoretical coverage (DFT) 0.15kg/㎡ film thickness 100μm

    Typical physical properties

    Item Test standard Results
    Pencil hardness   H
    Adhesive strength(Mpa)metal base HG/T 3831-2006 9.3
    Adhesive strength(Mpa)concrete base HG/T 3831-2006 2.8
    Impermeability   2.1Mpa
    Bending test (cylindrical shaft)   ≤1mm
    Abrasion resistance (750g/500r) mg HG/T 3831-2006 5
    Impact resistance  kg·cm                 GB/T 1732 50
    Anti-aging, accelerated aging 1000h GB/T14522-1993 Loss of light<1, chalking <1

    Chemical resistance

    Acid resistance 40%H2SO4 or 10%HCI, 240h   no rust, no bubbles, no peel off
    Alkali resistance 40%NaOH, 240h no rust, no bubbles, no peel off
    Salt resistance 60g/L, 240h no rust, no bubbles, no peel off
    Salt spray resistance 1000h no rust, no bubbles, no peel off
    Oil resistance, engine oil 240h   no rust, no bubbles, no peel off
    Water resistance, 48h No bubbles, no wrinkled,

    no color-changing, no peel off

    (Note: The above chemical resistant property is obtained according to the GB/T9274-1988 test method, for reference only. Pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data.)

    Application instructions

    Hand brush, roller

    Air spray, with air pressure 0.3-0.5Mpa 

    Airless spray, with spray pressure 15-20Mpa

    Recommend dft: 150-300μm

    Recoating interval: min 1h, max 24h


    Product cure time

    Substrate temperature Surface dry time Foot traffic Solid dry time
    +10℃ 2h 24h 7d
    +20℃ 1.5h 8h 7d
    +30℃ 1h 6h 7d

    Note: the curing time is different with environment condition especially when temperature and relative humidity changes.

    Shelf life

    Storage temperature of environment: 5-35℃

    * shelf life is from the manufacturing date and sealed condition

    Part A: 10 months     Part B: 10 months

    * keep the package drum well sealed.

    * store in cool and ventilated place, avoid sunshine exposure.

    Package: part A: 25kg/barrel, part B: 25kg/barrel. 


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