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Medium-oil-length alkyd resin offering balanced drying speed and film flexibility.
Excellent compatibility with common solvents, nitrocellulose, and other thermoplastic resins.
Provides superior gloss retention and color stability in ambient-cure coatings.
Low viscosity enables high-solids formulation without sacrificing application performance.
Designed for enhanced adhesion to metal, wood, and primed plastic substrates.
General-purpose air-drying decorative enamels for metal furniture and fixtures.
Industrial maintenance coatings for agricultural and construction equipment.
Wood finishing systems including interior trim, cabinets, and window frames.
Undercoat and mid-coat formulations requiring good sandability and overcoatability.
Refinish coatings for automotive aftermarket and light-duty transportation applications.
| Chemical Type | Medium-oil modified alkyd resin |
| Product Form | Liquid solution in aromatic hydrocarbon solvent |
| Appearance | Clear, pale yellow viscous liquid |
| Non-Volatile Content (wt%) | 50 ± 1% |
| Gardner Color (max) | 4 |
| Viscosity (Ford Cup #4, 25°C) | 40–60 seconds |
| Acid Value (mg KOH/g) | 6–9 |
| Solubility | Compatible with xylene, toluene, and high-flash naphthas |
Q1: What is the primary application of Sam Chung 3370DS Alkyd Resin?
A: Sam Chung 3370DS is a solvent-based alkyd resin designed primarily for high-gloss, durable decorative and protective coatings—especially in industrial maintenance, general-purpose enamels, and metal finishing applications where good flow, leveling, and film hardness are required.
Q2: Is Sam Chung 3370DS compatible with other common resin systems?
A: Yes, it demonstrates good compatibility with melamine-formaldehyde resins, urea-formaldehyde resins, and certain acrylic co-resins commonly used in baked enamel formulations. Compatibility testing under actual formulation conditions is recommended prior to full-scale production.
Q3: What solvents are typically recommended for diluting Sam Chung 3370DS?
A: It is readily soluble in standard aromatic hydrocarbons (e.g., xylene, Solvesso™ 100), ketones (e.g., MEK, MIBK), and esters (e.g., butyl acetate). Selection should consider VOC regulations, evaporation rate requirements, and compatibility with other formulation components.
Q4: How does Sam Chung 3370DS perform in terms of drying and through-dry characteristics?
A: As a medium-oil-length alkyd resin, it offers balanced air-drying performance—providing reasonable tack-free time and progressive crosslinking over several days. For accelerated cure, it responds well to conventional driers (e.g., cobalt, zirconium) and can be thermally cured when blended with amino resins.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
