Product Overview
Runshine New Materials (Foshan) Co., Ltd. offers a range of high-performance waterborne polyurethane resins (PUD/PUA) under the RHE series, engineered for use in coatings, inks, and adhesive applications. These eco-friendly, aliphatic resins serve as primary film-forming binders that can be crosslinked with isocyanates or other hardeners, or used as self-crosslinking systems to form durable, flexible, and chemical-resistant coating films.The RHERI® series provides tailored solutions for demanding coating and ink applications, including flexible packaging inks, plastic coatings, metal primers, and finish varnishes. Key performance features include excellent adhesion to various substrates (e.g., PET, PVC, AL, LDPE), high elongation, good pigment wetting, alcohol tolerance, and resistance to yellowing, plasticizer migration, and solvents.These resins are designed with controlled molecular architecture and functionality to ensure compatibility with waterborne formulations, delivering robust performance in challenging environments while supporting sustainability goals through reduced VOC content and compliance with international environmental standards.
Best Eco-Friendly And High-Performance Waterborne
Polyurethane Resin For Package OPV Coating Applications
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Key Features
✧ Exceptional ecological safety and sustainability – As a waterborne system, this polyurethane resin is formulated without organic solvents, significantly reducing VOC emissions and aligning with global environmental regulations such as REACH and EPA standards.
✧ Superior mechanical and elastic properties – The resin exhibits high tensile strength and outstanding elongation, providing durable and flexible films that resist cracking and deformation under mechanical stress or substrate movement.
✧ Excellent adhesion to diverse substrates – Demonstrates strong bonding to various plastics (LDPE, HDPE, PET, OPP), metals (AL), and PVC without delamination, ensuring reliable performance in multi-material applications.
✧ Enhanced chemical and solvent resistance – The crosslinked polyurethane network offers robust resistance to chemicals, oils, and plasticizer migration, making it suitable for demanding industrial environments.
✧ High pigment compatibility and dispersion stability – Water based Polyurethane Resin designed with excellent wetting properties for TiO₂ and organic pigments, enabling stable color paste preparation and uniform coloration in coating systems.
✧ Good compatibility with other resin systems – Water based Polyurethane emulsion can be blended with native polyurethane resins or crosslinked with isocyanates (e.g., 6027) to formulate products such as UV ink varnishes with improved flexibility and storage stability.
✧ Excellent surface properties and film formation – Water based Polyurethane Dispersion PUD Provides smooth leveling, high gloss retention, and controlled surface tension, resulting in defect-free films with excellent intercoat adhesion and anti-blocking performance.
✧ Broad application versatility – Suitable for use in coatings, inks, adhesives, and overprint varnishes for flexible packaging, metal coatings, plastic coatings, and graphic arts, offering a balanced cost-to-performance ratio.
|
Parameter
|
Typical Value
|
Unit
|
Notes
|
|
Appearance
|
Transparent viscous liquid with little yellow
|
–
|
Visual inspection
|
|
Solid Content
|
32-39
|
%
|
Can be adjusted for formulation
|
|
Viscosity (25°C, Brookfield RV)
|
50-800CPS (25 ℃)
|
mPa·s
|
Spindle 3, 20 rpm
|
|
Color
|
<1 # (Fe-Co)
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/
|
/
|
|
Density (25°C)
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1.05–1.15
|
g/cm³
|
Typical value
|
|
Recommended Solvents
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Water
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–
|
For formulation compatibility
|
|
Shelf Life
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12
|
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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Avoid direct sunlight and moisture
|
| Model |
Type |
Viscosity（mpa.s/25℃） |
OH value
% |
Soild Content
% |
pH Value |
Tensile Strength（Mpa） |
100% Modulus
（Mpa） |
Elongation
% |
Dried Forming-Film Surface Tension |
Character |
|
| RHERI®U106 |
Water-based PUA |
<500 |
|
39±1 |
6.0-8.0 |
|
|
|
＜36 |
Solvent-free, aliphatic, with high hardness, excellent solvent resistance. Excellent anti-adhesion and anti-indentation properties. |
| RHERI®U110 |
Water-based PUD |
<800 |
|
37±1 |
7.0-9.0 |
6.5 |
4 |
160% |
＜38 |
NMP containing, has good adhesion to PVC, good wetting and dispersion of TiO2 and various organic pigments. Can be ground in color paste, and has excellent storage stability. |
| RHERI®U111 |
Water-based PUD |
<600 |
|
34±1 |
7.0-9.0 |
27 |
13 |
350% |
＜38 |
NMP containing, has good adhesion to PVC and is resistant to plasticizer migration. |
| RHERI®U114 |
Water-based PUA |
50–300 |
|
35±1 |
7.0-8.5 |
|
|
|
38-40 |
Providing excellent metal orientation and good stability of pigment formulations. Providing good mechanical & chemical properties, and good adhesion to PVC, high alcohol tolerance(cannot be diluted directly with anhydrous ethanol). Good interlayer fastness with UV ink, good folding resistance and explosion-proof, combined with 6027 for good heat storage. |
| For more products in detail ,pls contact us |
Applications
Our waterborne polyurethane resin is formulated for high-performance eco-friendly coating systems, delivering exceptional durability and chemical resistance without compromising environmental compliance.
◊High-hardness topcoats and primers for automotive interiors, industrial machinery, and plastic substrates
◊Pigment grinding bases and high-gloss finishes for PVC, synthetic leather, and flexible packaging inks
◊Chemical-resistant coatings for medical devices, industrial containers, and metal components
◊Adhesion promotion layers for UV ink systems and multi-material composite structures
Benefits
1. Solvent-Free Aliphatic Waterborne Polyurethane Resin
Key Traits: Thermoplastic or crosslinkable aliphatic PUD; cures via physical drying or optional crosslinking; free of volatile organic compounds (VOCs)
✧Primary Benefits:
Exhibits outstanding UV stability and non-yellowing properties due to aliphatic structure
Delivers high hardness, excellent solvent resistance, and remarkable anti-adhesion and anti-indentation performance
Provides superior mechanical strength and chemical resistance while maintaining self-levelling characteristics
✧Typical Uses:
High-performance wood and furniture coatings requiring clarity and durability
Automotive interior coatings and industrial maintenance finishes demanding non-yellowing properties
2. NMP-Containing Pigment-Compatible Waterborne Polyurethane Resin
Key Traits: Contains N-methyl-2-pyrrolidone (NMP) as processing aid; demonstrates exceptional pigment wetting and dispersion stability
✧Primary Benefits:
Enables superior TiO₂ and organic pigment dispersion with excellent color development stability
Maintains consistent viscosity and storage stability in color paste formulations
Provides strong adhesion to PVC substrates with resistance to plasticizer migration
✧Typical Uses:
Flexible packaging inks and coatings for PVC substrates
Pre-treatment primers and pigmented systems for plastic coatings
3. High-Performance Metal & Substrate Adhesion Resin
Key Traits: Specially formulated PUA/PUD hybrid system; demonstrates broad substrate adhesion and metal orientation capability
✧Primary Benefits:
Ensures excellent interlayer adhesion with UV inks and strong bond to various films
Offers exceptional alcohol tolerance and folding endurance with explosion-proof properties
Maintains stable pigment orientation and provides reliable heat resistance when combined with crosslinkers
✧Typical Uses:
Composite inks for flexible packaging and K-film applications
Primer formulations for metalized substrates and multi-layer coating systems
