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High transparency and excellent optical clarity for precision coating applications.
Superior UV resistance and long-term weatherability without yellowing.
Good solubility in common organic solvents including ethyl acetate, methyl ethyl ketone, and toluene.
Controlled molecular weight distribution ensuring consistent film formation and viscosity stability.
Low volatile organic compound (VOC) content compliant with stringent environmental regulations.
Automotive clearcoats and topcoats requiring high gloss and durability.
Architectural and industrial maintenance coatings for exterior metal and concrete substrates.
Plastic coatings for ABS, PC, and PMMA substrates in electronics and consumer goods.
UV-curable hybrid systems where acrylic backbone enhances flexibility and adhesion.
Specialty printing inks for high-resolution graphic films and signage.
| Chemical Type | Thermoplastic acrylic copolymer |
| Product Form | Granular solid |
| Appearance | White to off-white free-flowing granules |
| Primary Applications | High-performance coatings and specialty inks |
| Key Features | UV stability, solvent solubility, optical clarity |
| Benefits | Enhanced durability, low VOC, consistent batch-to-batch performance |
| Storage Conditions | Store in cool, dry place below 30°C; protect from moisture |
| Shelf Life | 24 months from date of manufacture under recommended storage |
Q1: What is the primary function of HR-7004 in coating formulations?
A: HR-7004 is a high-molecular-weight acrylic resin designed primarily as a rheology modifier and film-forming aid. It enhances viscosity stability, improves sag resistance in vertical applications, and contributes to uniform film formation without compromising clarity or gloss.
Q2: Is HR-7004 compatible with water-based and solvent-based systems?
A: Yes, HR-7004 exhibits broad compatibility across both water-based emulsions and common organic solvent systems, including esters, glycol ethers, and aromatic hydrocarbons. Its performance may vary depending on pH, ionic strength, and co-solvent selection—formulation optimization is recommended for each system.
Q3: How should HR-7004 be incorporated into a formulation to ensure optimal dispersion?
A: For best results, HR-7004 should be added during the let-down stage under moderate agitation. Pre-dilution with a compatible solvent or water (depending on the system) is advised to prevent agglomeration. Avoid high-shear mixing at initial addition; gentle dispersion followed by gradual incorporation of other components yields uniform rheological behavior.
Q4: Does HR-7004 impact the drying time or curing profile of coatings?
A: HR-7004 is non-reactive and does not participate in crosslinking reactions. It typically has minimal influence on drying kinetics but may slightly extend flash-off time due to its film-building character—this effect is formulation-dependent and generally manageable within standard processing windows.
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