Product Overview
The waterborne polyurethane dispersion presents as a milky semi-transparent liquid, with a solids content of 35±1% that guarantees sufficient coating thickness and durability. Its pH value ranges from 7.0 to 9.0 at 25°C, ensuring compatibility with common substrates and auxiliary materials in transfer coating processes. When measured with a Brookfield viscometer at 25°C, the viscosity of this waterborne polyurethane dispersion is less than 300 mPa·s, providing excellent fluidity for easy application and uniform spreading. In terms of storage, it remains stable for 6 months at 20°C in originally closed containers, with a recommended storage temperature range of 5°C to 30°C. Avoiding freezing, exposure to temperatures exceeding 30°C, and contamination by bacteria, fungi, or algae is crucial to maintain its optimal performance.
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Key Features
- Excellent High-temperature Resistance: This waterborne polyurethane dispersion exhibits remarkable tolerance to high temperatures, enabling it to maintain structural integrity and performance stability even in environments with elevated temperatures during or after the transfer coating process.
- Superior Transferring Performance: It boasts good transferring ability, ensuring that the coating can be smoothly and completely transferred from the carrier to the target substrate, resulting in a consistent and high-quality finish.
- Solvent-free Property: As a solvent-free waterborne polyurethane dispersion, it is more environmentally friendly, reducing the emission of harmful volatile organic compounds (VOCs) and minimizing environmental impact while ensuring operator safety.
- Stable Physical Properties: With a well-balanced solids content, pH value, and viscosity, the waterborne polyurethane dispersion maintains consistent performance throughout storage and application, avoiding issues such as uneven coating or poor adhesion.
| Parameter |
Typical Value |
Unit |
Notes |
| Viscosity (25°C, Brookfield RV) |
< 500 |
mPa·s |
Spindle 3, 20 rpm |
| Soild Content |
30±1 |
% |
/ |
| pH Value |
4.5-6.5 |
– |
/ |
| Shelf Life |
12 |
months |
Stored in sealed containers at 5–35°C |
| Storage |
Cool, dry place |
– |
Avoid direct sunlight and moisture |
| Parameter |
Typical Value |
| Apprearance |
Milky white |
| Modulus(Mpa) |
4.5-6 |
| Elongation% |
≥450 |
| Tensile Srtrength(Mpa) |
≥35 |
Tg (℃)
|
~40℃
|
Applications
- Packaging Industry: Widely used for transferring coatings on packaging materials like plastic films, paper, and aluminum foils. It accurately and firmly transfers decorative patterns, logos, or protective layers to enhance packaging aesthetics and functionality. Especially in food packaging, its solvent-free feature meets food safety standards, and high-temperature resistance prevents coating degradation during processing or storage.
- Textile Industry: Applied in transfer coating of fabrics (cotton, polyester, blended fabrics) to transfer functional layers (waterproof, oil-proof, flame-retardant). It ensures even coating adhesion without compromising fabric softness and breathability, expanding fabric application scope.
- Printing and Decorating Industry: Serves as a key material for transfer printing coatings on substrates such as wood, metal, and plastic products. Suitable for furniture decorative purposes and electronic product casing surface finishing, it achieves precise pattern and color transfer with durable decorative effects, and its high-temperature resistance adapts to post-coating high-temperature processing.
- Automotive Interior Industry: Used for transferring coatings on interior components (dashboards, door panels, seat fabrics). It provides a wear-resistant, scratch-resistant, and aesthetically pleasing surface, while its solvent-free and stable properties meet the automotive industry’s strict quality and environmental requirements.
Benefits
- Enhanced Application Efficiency: The superior transferring performance of the waterborne polyurethane dispersion reduces coating waste and ensures uniform coverage, improving the efficiency of the transfer coating process and reducing production costs.
- Environmental Friendliness: Being a solvent-free waterborne polyurethane dispersion, it lowers VOC emissions, aligns with environmental protection regulations, and creates a safer working environment for operators, reducing health risks associated with solvent-based coatings.
- Reliable Performance in Diverse Conditions: The excellent high-temperature resistance and stable physical properties make the waterborne polyurethane dispersion adaptable to various processing and usage environments, ensuring long-lasting coating performance and reducing the need for rework or maintenance.
- Broad Compatibility: It is compatible with a wide range of substrates and auxiliary materials, providing flexibility in application across different industries and products, eliminating the need for specialized materials and simplifying the production process.
- Improved Product Value: By enhancing the aesthetic appeal, functional properties, and durability of the coated products, this waterborne polyurethane dispersion helps manufacturers upgrade their product quality, gain a competitive edge in the market, and meet the evolving demands of consumers.
