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Excellent film-forming capability with high gloss and clarity after drying.
Superior abrasion and scratch resistance for demanding end-use environments.
Low VOC content (< 50 g/L), fully compliant with stringent environmental regulations.
Good compatibility with acrylic emulsions and water-based additives for formulation flexibility.
Stable storage life of ≥12 months at 5–35°C without viscosity drift or phase separation.
Water-based leather finishing coatings for footwear and furniture.
High-performance wood coatings, including furniture, flooring, and cabinetry finishes.
Textile coating binders for synthetic fabrics requiring elasticity and wash-fastness.
Plastic and metal substrate coatings in industrial maintenance and decorative applications.
Adhesive primers and topcoats for flexible packaging laminates.
| Chemical Type | Anionic aliphatic polyurethane dispersion |
| Product Form | Opaque white to light yellow liquid |
| Appearance | Homogeneous, slightly viscous dispersion |
| Solids Content (wt%) | 30.0 ± 1.0% |
| pH Value (25°C) | 7.5 – 8.5 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 150 – 400 |
| Minimum Film-Forming Temperature (MFFT) | ≈ 12°C |
| Key Features | Waterborne, non-yellowing, low-odor, ready-to-use dispersion |
Q1: What are the primary application areas for Tongde PUD6228?
A: Tongde PUD6228 is widely used in high-performance waterborne coatings for flexible substrates, including synthetic leather finishing, textile coatings, and soft-touch decorative films. Its balanced film-forming ability and mechanical resilience make it especially suitable for applications requiring good abrasion resistance and low-temperature flexibility.
Q2: How does PUD6228 perform in terms of water resistance and chemical stability after film formation?
A: Once fully cured, films derived from PUD6228 exhibit good resistance to water immersion and mild aqueous chemicals. Crosslinking—either through ambient coalescence or optional thermal or catalytic post-treatment—enhances hydrophobicity and long-term stability. Performance may vary depending on formulation additives and drying conditions.
Q3: Can PUD6228 be blended with other waterborne resins or additives?
A: Yes, PUD6228 demonstrates good compatibility with many common waterborne acrylics, polyacrylates, and cellulose derivatives. It also accepts standard surfactants, defoamers, and rheology modifiers—though compatibility testing is recommended prior to full-scale formulation to ensure colloidal stability and film integrity.
Q4: What is the typical solids content and viscosity range for PUD6228?
A: PUD6228 is supplied as a stable aqueous dispersion with solids content in the range of 30–35% by weight. Its Brookfield viscosity typically falls within the low-to-moderate range, supporting easy handling and application by knife-coating, gravure, or spray methods without excessive dilution.
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