Overview
VOC-free wax dispersion is a water-based colloidal system where micro-sized wax particles are uniformly dispersed without volatile organic compounds. It is engineered to replace solvent-based waxes in industrial applications, aligning with global environmental regulations like REACH and EPA standards. The product is favored for its ease of integration into aqueous formulations while delivering functional benefits such as surface protection and aesthetic enhancement. Developed as a sustainable alternative, it typically uses natural or synthetic waxes like polyethylene, carnauba, or paraffin. Its versatility makes it suitable for diverse industries, including automotive, wood coatings, and flexible packaging, where eco-friendly solutions are prioritized.
Physical and Chemical Properties
The dispersion appears as a milky liquid with a solids content ranging from 20% to 40%. Its viscosity can be adjusted based on application needs, usually falling between 100-1000 mPa·s. The pH is neutral to slightly alkaline (7-9) to ensure compatibility with other coating components. Key performance metrics include particle size (0.1-5 µm), which influences gloss and texture, and thermal stability up to 80°C. Unlike solvent-based counterparts, it exhibits negligible odor and flammability. The wax content determines properties like hardness and melting behavior, which are critical for end-use performance.
Main Applications
In coatings, VOC-free wax dispersion enhances scratch resistance and provides matting effects for furniture and automotive finishes. Ink formulations leverage its anti-blocking properties to prevent sticking in packaging materials. Adhesive manufacturers use it as a slip agent to improve peelability. The textile industry applies it for fabric softening and water repellency, while polishes utilize its gloss-enhancing capabilities. Its compatibility with UV-curable systems expands its utility in high-speed industrial processes, reducing energy consumption compared to solvent evaporation.
Safety and Storage
As a water-based product, it poses minimal health risks but may cause mild irritation upon prolonged exposure. Use gloves and goggles when handling concentrated forms. Storage requires protection from extreme temperatures to prevent coagulation or bacterial growth. Containers should be sealed tightly to avoid evaporation and contamination. Shelf life typically ranges from 6-12 months under recommended conditions. Spills can be cleaned with water, aligning with low-hazard disposal protocols.
B2B Procurement Guide
When sourcing VOC-free wax dispersions, prioritize suppliers with ISO 14001 certification to ensure environmental compliance. Request technical datasheets detailing particle size, viscosity, and wax type. Batch consistency is crucial for industrial applications; consider ordering samples for testing. Pricing depends on wax grade and order volume. Bulk purchases (1+ tons) often reduce costs by 10-20%. Logistics should account for temperature-controlled transport if required. Establish long-term contracts with suppliers to secure stable pricing and availability.
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