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Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time

    Buy cheap Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time from wholesalers
     
    Buy cheap Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time from wholesalers
    • Buy cheap Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time from wholesalers
    • Buy cheap Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time from wholesalers
    • Buy cheap Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time from wholesalers

    Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time

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    Brand Name : WeiLi
    Model Number : WL-AD3947
    Certification : ISO9001
    Price : Negotiate
    Payment Terms : T/T
    Supply Ability : 500TONS
    Delivery Time : 15 working days
    • Product Details
    • Company Profile

    Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time

    . Core Product Profile​

    • A water-based hydroxyl acrylic dispersion designed for formulating high-performance ​​two-component polyurethane coatings​​ when combined with a water-based isocyanate curing agent.
    • Primarily used for ​​topcoats​​ and ​​clear finishes​​ on various metal substrates. Also suitable as a resin for ​​integrated primer-topcoat systems​​.

    ​2. Key Performance Features​

    • ​Superior protection​​: Excellent ​​water resistance, salt spray resistance, acid and alkali resistance​​, along with a relatively long initial water resistance time, making it ideal for outdoor applications and harsh environments.
    • ​Excellent adhesion​​: Performs well on a variety of substrates.
    • ​High cost-effectiveness​​: Offers high performance at a competitive cost.
    • ​Strong compatibility​​: Can be paired with both ​​water-based​​ and ​​solvent-based​​ curing agents, providing formulation flexibility.

    ​3. Physical Properties​

    Parameter
    Unit
    Value/Range
    Appearance

    Milky liquid
    Viscosity
    mPa·s
    500 - 4500
    Solid Content
    %
    44 - 46
    pH

    7.5 - 8.5
    Hydroxyl Content
    %
    3.2 (reference)

    ​4. Application Guidelines​

    • ​Recommended co-solvents​​:
      • ​For main agent​​: DPNB, PNB, DBG, BG
      • ​For dilution​​: PGDA, PMA, PMA+DBE (1:1 or 1:2 mixture)
    • ​Important notes​​:
      • High initial viscosity after mixing A/B components may ​​shorten the pot life​​.
      • ​Not recommended for paste grinding​​ due to potential stability issues that may impact performance.
    • ​Viscosity adjustment​​: If viscosity decreases during storage (due to pH drop), it can be readjusted by adding a ​​10%-20% diluted DMEA aqueous solution​​.

    ​5. Testing Example​

    • ​Recommended curing agent​​: WL-AC300 (for primer-topcoat systems)
    • ​Mixing ratio​​: 4 : 1 (base resin : curing agent)
    • ​Film thickness control​​: Up to 85μm without pinholes.
    • ​Curing process​​: Baking at 80℃ for 2-4 hours followed by ambient curing for 1-7 days results in excellent salt spray resistance.

    ​6. Packaging & Storage​

    • ​Packaging​​: 20KG/200KG/1000KG wide-mouth plastic drums, or customized per customer requirements.
    • ​Shelf life​​: 6 months.
    • ​Storage conditions​​: Store in sealed containers, protected from freezing and high temperatures. Recommended storage temperature: ​​5~35℃​​.
    • ​Usage recommendation​​: Use shortly after opening.
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