Product Overview
Runshine New Materials (Foshan) Co., Ltd. offers the HAC Series—a range of high-performance solvent-based hydroxyl-functional acrylic resins specifically engineered for topcoat applications. These resins provide a high hydroxyl value that enables efficient crosslinking with polyisocyanates, resulting in durable, weatherable, and chemically resistant polyurethane networks. Designed for use in automotive refinish, industrial machinery, electric vehicle coatings, and corrosion protection systems, the HAC Series delivers rapid drying, high fullness, excellent flow and leveling, superior hardness, impact resistance, broad formulation compatibility, and long pot life. With optimized molecular design, Runshine’s HAC resins offer a cost-effective and adaptable solution for mid-to-high performance coating markets.
Hydroxyl-Functional Acrylic Resin
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Key Features
✧Fast drying – The low molecular weight and tailored Tg of the hydroxyl-functional acrylic resin facilitate rapid solvent release and surface drying, boosting production efficiency.
✧High film build – The resin's rheological properties allow for the application of thicker coats without sagging, ensuring superior coverage.
✧Excellent cost-performance ratio – Runshine’s HAC resin delivers premium coating properties at a competitive formulation cost, maximizing value.
✧Long pot life – A balanced reactivity profile ensures sufficient working time for large-area or complex spray applications.
✧Excellent leveling – The polymer design promotes smooth substrate wetting and reduces orange peel, resulting in high-gloss surfaces.
✧Broad compatibility – This hydroxyl acrylic resin exhibits good solubility and blendability with a variety of additives and crosslinkers.
✧Balanced overall performance – It offers an optimal combination of hardness, flexibility, and appearance for diverse coating requirements.
✧Good wetting – The resin enhances substrate wetting and adhesion, reducing surface defects on various materials.
✧Wide applicability – It is suitable for use in industrial, decorative, and protective coatings over different substrates.
✧Excellent film fullness – The high solid content and molecular structure contribute to rich visual depth and aesthetic appeal.
✧Good chemical resistance – Crosslinking with isocyanates forms a dense network that resists solvents, fuels, and cleaning agents.
✧High hardness – The rigid polymer backbone and high crosslink density provide outstanding scratch and mar resistance.
✧Outstanding weather resistance – Featuring stable chemical bonds and UV resistance, it ensures long-term gloss and color retention.
✧Excellent impact resistance – The resin combination of hard and soft segments allows absorption of mechanical shock without cracking.
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Parameter
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Typical Value
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Unit
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Notes
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Appearance
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Transparent viscous liquid with little yellow
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–
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Visual inspection
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Solid Content
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60–75
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%
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Can be adjusted for formulation
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Viscosity (25°C, Brookfield RV)
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2000-9000CPS (25 ℃)
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mPa·s
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Spindle 3, 20 rpm
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Color
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<1 # (Fe-Co)
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/
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/
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Density (25°C)
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1.05–1.15
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g/cm³
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Typical value
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Recommended Solvents
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Xylene，Toluene
Butyl acetate，Dimethyl carbonate
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–
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For formulation compatibility
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Shelf Life
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12
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months
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Stored in sealed containers at 5–35°C
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Storage
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Cool, dry place
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–
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Avoid direct sunlight and moisture
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| Hydroxyl-functional Acrylic |
| Product Name |
Application Mode |
Application Field |
Key Technical Features |
Solid Content (≥%) |
Viscosity mPa·s/25°C |
Acid Value mgKOH/g |
Color |
Hydroxyl Value |
Hydroxyl Content (100% Resin) |
Solvent |
| HAC8567 |
Topcoat |
Refinish, engineering-machinery and anti-corrosion coatings |
Fast drying; high film build; excellent cost-performance ratio |
65 |
2500 - 7500 |
3.0 - 8.0 |
<1 |
100 |
0.03 |
Xylene/Toluene |
| HAC8571 |
Topcoat |
Mid- to high-end refinish coatings; electric-vehicle and plastic-housing finishes |
Fast drying; long pot life; high film build |
70 |
4000 - 8000 |
6.0 - 12.0 |
<1 |
100 |
0.03 |
Butyl acetate/Dimethyl carbonate |
| HAC8568 |
Topcoat |
Interior / exterior parts and clearcoats for electric vehicles |
Excellent leveling; broad compatibility; balanced overall performance |
70 |
4000 - 8000 |
3.0 - 9.0 |
<1 |
100 |
0.03 |
Xylene/Butanol |
| HAC8570 |
Topcoat |
Anti-corrosion, refinish and engineering-machinery coatings |
High film build; good wetting; wide applicability |
74 |
3000 - 6000 |
3.0 - 8.0 |
<1 |
80 |
0.024 |
Xylene/Butanol |
| HAC8772 |
Topcoat |
Interior / exterior parts and clearcoats for electric vehicles |
Excellent leveling and film fullness; fast drying; good chemical resistance |
75 |
3000 - 9000 |
3.0 - 12.0 |
<1 |
150 |
0.045 |
Butyl acetate/Dimethyl carbonate |
| HAC8768 |
Topcoat |
Interior / exterior parts and clearcoats for electric vehicles |
Excellent leveling and film fullness; high hardness; outstanding weather resistance |
70 |
2000 - 6000 |
3.0 - 9.0 |
<1 |
140 |
0.042 |
Butyl acetate/Dimethyl carbonate |
| HAC8566 |
Intermediate coat (PU) |
Rail-transport PU intermediate coats |
Fast drying; excellent impact resistance; long pot life |
60 |
4000 - 8000 |
6.0 - 12.0 |
<1 |
110 |
0.033 |
Butyl acetate/Dimethyl carbonate |
| For Hydroxyl-functional Acryliclist in detail ,kindly contact me for more |
Applications
Our hydroxyl-functional acrylic resin is suitable for a wide range of refinish, engineering-machinery and anti-corrosion coatings, with excellent performance when cured with polyisocyanates.
◊ Mid- to high-end refinish coatings; electric-vehicle and plastic-housing finishes
◊ Interior and exterior parts and clearcoats for electric vehicles
◊ Anti-corrosion, refinish and engineering-machinery coatings
◊ Rail-transport PU intermediate coats
Benefits
1.Hydroxyl-Functional Acrylic Resins
Key Traits: Contains reactive hydroxyl (-OH) groups; cures via crosslinking with isocyanates; offers adjustable hydroxyl value and molecular weight
✧ Primary Benefits:
Enables fast drying and rapid film formation, improving production efficiency
Provides high film build with excellent flow and wetting properties for smooth finishes
Delivers an excellent cost-performance ratio across diverse coating formulations
Offers long pot life for easier application and processing flexibility
✧ Typical Uses:
Automotive refinish coatings: Delivers fast drying and high film build, ideal for quick turnaround in repair shops
Industrial and machinery coatings: Provides excellent impact resistance and leveling, suitable for heavy-duty equipment
Electric vehicle interior/exterior parts: Combines high hardness, chemical resistance, and outstanding weather resistance
2.Hydroxyl-Functional Acrylic Resins for High-Performance Applications
Key Traits: Designed for mid-to-high hydroxyl content; ensures broad compatibility with polyisocyanates; yields films with high surface quality and durability
✧ Primary Benefits:
Exhibits excellent leveling and film fullness, enhancing aesthetic appearance
Ensures balanced overall performance including fast drying and long pot life
Provides high hardness and outstanding weather resistance for exterior durability
Shows good substrate wetting and wide applicability across various substrates
✧ Typical Uses:
Premium plastic housing coatings: Offers excellent adhesion and film integrity for consumer electronics and automotive plastics
Rail and transport coatings: Delivers high film build, corrosion resistance, and weatherability in intermediate and topcoat systems
Marine and anti-corrosion coatings: Provides robust protection with high chemical resistance and environmental endurance
