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High-solids, low-VOC alkyd resin designed for sustainable coatings formulations.
Excellent flow and leveling properties for superior film formation and gloss retention.
Enhanced drying performance with balanced through-dry and surface-dry characteristics.
Good compatibility with common solvents, plasticizers, and co-resins including acrylics and melamines.
Consistent batch-to-batch quality supported by stringent DSM manufacturing controls.
Architectural wood finishes (interior and exterior).
Industrial maintenance coatings for metal substrates.
General-purpose decorative enamels and varnishes.
Marine and rail coatings requiring durability and weather resistance.
Refinish coatings for automotive and agricultural equipment.
| Chemical Type | Modified short-oil alkyd resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Non-Volatile Content (NV) | ~60–65% (by weight, in xylene) |
| Viscosity (25°C, Brookfield RVT, spindle #4, 20 rpm) | ~1,800–2,500 mPa·s |
| Density (20°C) | ~0.98–1.02 g/cm³ |
| Solubility | Compatible with aromatic hydrocarbons, ketones, and esters |
| Storage Stability | Stable for ≥12 months at 15–25°C in sealed containers |
Q1: What is the primary function of Novalkyd 3850 in coating formulations?
A: Novalkyd 3850 is a medium-oil alkyd resin designed to serve as a film-forming binder in solvent-borne decorative and protective coatings. It contributes to good gloss development, flexibility, and through-dry performance while enabling compatibility with common co-resins and crosslinkers.
Q2: Is Novalkyd 3850 suitable for high-solids or low-VOC formulations?
A: Yes — its relatively low viscosity and favorable solubility profile make it well-suited for high-solids alkyd systems. It can be formulated to meet evolving VOC regulations when combined with appropriate solvents and additives, though final compliance depends on the full formulation matrix.
Q3: How does Novalkyd 3850 compare to traditional long-oil alkyds in terms of drying behavior?
A: As a medium-oil alkyd, Novalkyd 3850 offers faster surface dry and improved through-dry compared to conventional long-oil resins, while retaining adequate flexibility and outdoor durability. Its reactivity supports efficient air-oxidative curing without requiring excessive drier loadings.
Q4: Can Novalkyd 3850 be used in combination with acrylic or polyester resins?
A: Yes — it demonstrates good compatibility with many acrylic and saturated polyester resins in hybrid systems, allowing formulators to balance cost, performance, and application properties such as flow, leveling, and recoatability.
Q5: What types of pigments and additives is Novalkyd 3850 typically compatible with?
A: It shows broad compatibility with common organic and inorganic pigments, as well as standard coating additives including dispersants, defoamers, and rheology modifiers. For optimal stability, pigment grinding should follow established alkyd-specific wetting and dispersion protocols.
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E-mail: wangxingqiang@ericwchem.com
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