Water-based Hydroxyl Acrylic Dispersion for Two-component Polyurethane Coatings with Salt Spray Resistance, Acid and Alkali Resistance, and Long Initial Water Resistance Time
Price:
Negotiate
MOQ:
5000KGS
Delivery Time:
15 working days
Brand:
WeiLi
Product Description
Water-based Hydroxyl Acrylic Dispersion For Two-component Polyurethane Coatings
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.
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.
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) |
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.
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.
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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Company
Xiamen WangQin Chemical Technology Co., Ltd.
Location
GOLDEN BAY WEALTH CENTER, HULI HI-TECH PARK, XIAMEN, CHINA
Contact Person
Rena Xiao