WL-AD3953 is an aqueous hydroxy-functional polyacrylic dispersion
specifically formulated for coating applications on metal
substrates, including basecoats, topcoats, and clearcoats. This
hydroxylated acrylic dispersion serves as a direct replacement for
Bayhydrol A2470 when used in combination with complementary resin
systems from our product line.
Key characteristics include:
- Crosslinking capability with aliphatic polyisocyanates to form
high-gloss finishes
- Flexible curing options: ambient temperature drying or accelerated
curing at 80°C
- Exceptional film properties:
- Balanced hardness and elasticity
- Superior resistance to solvents, water, and environmental exposure
- Performance advantages:
- Rapid hardness development
- High threshold for bubble-free film formation
- Broad chemical resistance
- Excellent compatibility with solvent-borne isocyanate crosslinkers
The cured coating system demonstrates outstanding durability for
industrial applications requiring both aesthetic appeal and
long-term protection. Typical uses include automotive refinish,
industrial maintenance coatings, and metal packaging finishes where
regulatory-compliant, waterborne solutions are preferred.
Physical Property
Item | Value |
Appearance | Milky white liquid |
Non-Volatile content(%) | 45±1 |
Viscosity(m Pa · s) | 500~4500 |
PH | 7.5~8.5 |
Hydroxyl content (reference value, %) | 3.3 |
*This performance represents typical results only and is not
considered a specification, subject to specific COA
The film parameters of WL-AD3953 reacting with a group of
isocyanate curing agents are as follows:
| Item | WL-AD3953/TPA-100 (BGA dilution) |
| Surface drying time(25℃/35% outdoor corridor In breeze) | 30min |
| Surface drying time(14.5℃/60% outdoor corridor Under medium to high
humidity conditions) | 80min |
| Water resistance at room temperature | 15 days |
| Pencil hardness (baking) | H |
| Bending resistance (mm) | <1 |
| Impact (positive/negative cmkg) | 50/30 |
| Effective Validity period at 35℃ | 3h |
Application Guidelines
When combining with solvent-based isocyanate curing agents:
- Dilution Requirement: First dilute the dispersion to 60-70% concentration using
suitable co-solvents (e.g., BGA, PGDA, or PMA+DBE blend at 1:2
ratio)
- Mixing Protocol:
- Thoroughly blend main resin component and curing agent after
combination
- Ideal mixing method: Use mechanical stirring equipment (pneumatic
or electric stirrer)
- Water Content Control:
- Limit water dilution: Recommended ≤5% of main resin component
- Absolute maximum: ≤10% of main resin component
(Exceeding 10% causes gloss reduction)
- Stability Precautions:
- Avoid resin participation in pigment grinding processes
- Grinding operations introduce multiple instability factors
- May compromise dispersion stability during color paste preparation
Store:
Packaging specifications: 20KG/200KG/1000KG plastic barrel
Shelf life: 6 months
Product transportation: Handle with care to avoid impact, damage
and leakage.
Product storage: The product should be stored in a sealed container
to avoid freezing and high temperature. The
recommended storage temperature is 5~35℃
