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Medium-oil, cobalt-free alkyd resin offering excellent through-dry and surface-dry balance.
High compatibility with common solvents, vinyls, and acrylic co-resins for versatile formulation flexibility.
Delivers superior gloss retention and color stability upon UV exposure and weathering.
Low viscosity enables easy handling and high-solids formulation without excessive solvent demand.
Complies with major global VOC regulations for architectural and industrial coatings.
General-purpose air-drying enamel coatings for metal substrates.
Industrial maintenance coatings for machinery, agricultural equipment, and structural steel.
Wood finishing systems requiring durable film formation and aesthetic clarity.
Undercoat and primer formulations where adhesion and sandability are critical.
Decorative interior/exterior architectural paints requiring balanced drying and durability.
| Chemical Type | Medium-oil, cobalt-free alkyd resin |
| Product Form | Liquid (solution in aromatic hydrocarbons) |
| Appearance | Clear, pale yellow to amber viscous liquid |
| Primary Applications | Air-drying industrial enamels, maintenance coatings, wood finishes |
| Key Features | Through-dry performance, solvent compatibility, gloss retention |
| Benefits | Reduced VOC impact, improved formulation stability, enhanced film hardness |
| Storage Stability | 12 months in original unopened container at 15–25°C |
| Recommended Diluent | Xylene, Solvent Naphtha (Type II), or compatible aromatic blends |
Q1: What is the primary application field for Sam Chung 3370D Alkyd Resin?
A: Sam Chung 3370D is a medium-oil-length alkyd resin designed primarily for solvent-based decorative and protective coatings, including industrial maintenance paints, general-purpose enamels, and wood finishes where good gloss retention, through-dry performance, and compatibility with common organic solvents are required.
Q2: Is Sam Chung 3370D suitable for use in high-solids coating systems?
A: Yes — its molecular structure and viscosity profile support formulation into medium- to high-solids alkyd systems. Formulators can achieve reduced VOC content while maintaining acceptable application properties, though final solids level depends on co-resins, solvents, and pigmentation.
Q3: How does Sam Chung 3370D perform in terms of drying and film formation?
A: It exhibits balanced air-drying characteristics with good surface dry and reasonable through-dry development under ambient conditions. When combined with conventional cobalt- or manganese-based driers, it delivers reliable crosslinking and film hardness without excessive surface wrinkling or tackiness.
Q4: Can Sam Chung 3370D be blended with other resin types?
A: Yes — it demonstrates good compatibility with melamine formaldehyde resins, epoxy esters, and certain acrylic solution resins, enabling hybrid systems with enhanced chemical resistance or faster cure profiles. Compatibility testing under intended formulation conditions is recommended prior to scale-up.
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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
