Distinguish from appearance:
Waterborne polyurethane is mostly milky white and transparent, and blue light is translucent. Oily polyurethane is transparent.
Distinguish by medium:
Waterborne polyurethane: a new type of polyurethane system that uses water instead of organic solvents as the dispersion medium, also known as water-dispersed polyurethane, water-based polyurethane or water-based polyurethane.
Oily polyurethane: a polyurethane system with organic solvent as a dispersion medium, a polyurethane system with a thermoplastic linear structure.
According to environmental protection:
Water-based polyurethane uses water as the dispersion medium with extremely low VOC (volatile organic compound) content and minimal environmental pollution; oil-based polyurethane uses organic solvents (toluene, xylene, industrial alcohol, etc.) as the dispersion medium. Toluene and xylene are important items for product environmental monitoring. Oil-based polyurethane is less environmentally friendly than water-based polyurethane in the production, use and waste treatment process. There is a strong pungent smell and organic gas volatilization.
Distinguish from transportation and storage;
Oil-based polyurethane is a dangerous product and is flammable. It needs to be treated as hazardous chemicals when transported or stored in liquid form, while water-based polyurethane is not a dangerous product.
Use characteristics:
Water-based polyurethane: Water-based polyurethane uses water as a solvent, and has the advantages of no pollution, safety and reliability, excellent mechanical properties, good compatibility, and easy modification.
Oily polyurethane: mainly has a thermoplastic linear structure, which has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials. Good heat insulation, sound insulation, anti-vibration and anti-virus performance.