What are the differences between waterborne and common industrial paint

Increasingly strict environmental protection policies, many paint users are required to "oil to water", some places and industrial parks even explicitly require that the settled enterprises must use water-based paint, in order to pass the environmental assessment and cleaner production audit. Therefore, the application of industrial coatings has changed to water-based industrial coatings. So what's the difference between waterborne industrial paint and oily industrial paint? Water based industrial paint mainly uses water as diluent, which does not need curing agent and diluent. It is a new type of environmental protection antirust and anticorrosive coating on-line coatingol.com different from oil-based industrial paint. Waterborne industrial paint is widely used in bridge, steel structure, ship, electromechanical, steel and so on. Because of its energy saving and environmental protection, it will not cause harm and pollution to human body and environment, so it is welcomed by users. It is the future development direction of coating industry, and it is also an alternative product of oily paint.

Water for industrial paint, instead of organic solvent, is used as the dispersing medium in paint, and it is also diluted with water, so the VOC emission is very low, so as to reduce air pollution. This is the main reason for changing oil into water. Water based industrial paint is non combustible and non explosive, not a dangerous chemical. However, most of the oily industrial paints are hazardous chemicals (Class 3 flammable liquids). The state has many strict requirements for the transportation and storage of hazardous chemicals. For example, it must be transported by qualified hazardous goods transportation enterprises and vehicles and stored in class a warehouses. The place (coating workshop) where the oily industrial paint is used shall belong to class a workshop, etc. Although there are some risks in some severe corrosion environments (such as immersion environment, ultra long durability requirements, etc.) using waterborne industrial paint coating. But for most atmospheric corrosion environment, under the good coating process, the water-based industrial paint can completely approach or achieve the performance required by the crude oil based industrial paint coating. According to the variety of paint, the cost of paint materials will rise in different degrees. Taking the coating system of epoxy primer + polyurethane finish as an example, the unit price of waterborne industrial paint (epoxy primer and polyurethane finish) is estimated to increase by 50-100% compared with that of oily industrial paint. However, after the use of waterborne industrial paint, the diluent cost will be saved, the investment and cost in safety will be reduced, and the cost of three wastes treatment may be reduced. The construction process requirements of water-based industrial paint are generally higher than those of oil-based paint, which are reflected in the following aspects:

The degreasing degree of the surface to be coated is higher; the environmental conditions (temperature and humidity) of coating are higher. If there is no dehumidification, forced ventilation and heating function of spray paint room and leveling room, it is difficult to use water-based industrial paint smoothly in wet and cold winter weather. From the comparison of the basic properties of the above water-based industrial paint and oil-based industrial paint, the most environmentally friendly industrial paint is mainly water-based industrial paint. Its solvent is harmless to human body and environment, and it is a safe and pollution-free environmental protection coating. Secondly, as far as the effect is concerned, the paint layer after spraying shall be covered with neat and even color powder, and the glossiness, covering power and adhesion are better than that of oily paint. In addition, water, as a solvent, has good flame retardant performance, is not flammable and explosive, and is easier to store and transport safely.