The difference between water-based paint and oil-based paint used in Hangzhou spraying machine
At present, the Hangzhou spraying machine, coating line, coating production line, coating line, powder spraying machine, electrophoretic coating, coating company, coating equipment are divided into oily paints and water-based paints; they can be divided according to the shape of the paint Water-based coatings, solvent-based coatings, powder coatings, high-solids coatings, etc. Among them, water-based paint refers to paint that uses water as a diluent, and the volatile organic solvent is very little, only 5% to 10% of the solvent-based paint. No curing agent is used for film formation, so there is no problem of free TDI volatilization, which is green Environmentally friendly products.
Classification and characteristics of water-based paint
According to the dispersion form, water-based paint includes water-soluble paint, water-reducible paint and water-dispersible paint (latex paint). Their dispersion mechanism is different, and the performance of the products is also quite different, but no matter what type, they use water as a solvent or dispersion medium. According to the film-forming substances, water-based coatings can be divided into water-based acrylic coatings, water-based polyurethane coatings, water-based epoxy coatings, etc. In recent years, the film-forming materials of water-based coating products have tended to develop in the direction of mixed modification.
The characteristic of water-based coatings is that water replaces organic solvents as solvents or dispersion media, which saves a lot of organic materials (petroleum) resources, greatly reducing the pollution of the organic solvents in the coatings to the atmosphere and the fire hazard during construction. In addition, when the water-based paint sprayed by the Hangzhou powder coating equipment manufacturers is applied to metal materials, the workpiece can be painted without completely drying after the degreasing, rusting and phosphating processes, saving painting time and energy consumption. Electrophoretic coatings can be evenly painted on slits, tube holes, welding edges, etc., and the thickness of the coating film on the corners and edges is basically the same, which has a great advantage compared with solvent-based coatings.
Oily fluorocarbon paint products have the following characteristics:
1. The coating film of oily fluorocarbon paint is extremely strong in anti-ultraviolet and can maintain the original color for a long time. Fluorocarbon paint has ultra-durable performance, reduces maintenance costs, lowers overall costs, and prevents carbonization of concrete structures.
2. The use of ceramic composite technology makes the coating film more chemically stable, denser and harder, and reduces the surface chargeability of the coating film, reduces the accumulation of various dusts in the atmosphere, has strong pollution resistance, and has a self-cleaning function , Can maintain long-term natural cleanliness.
3. Strong solvent resistance and good alkali resistance, suitable for special harsh environments.
4. The coating film also has the functions of fire prevention, temperature resistance, anti-static and anti-radiation.
The comparison between oil-based coatings and water-based coatings should be based on products of the same grade, and there are three types of water-based coatings themselves: one is water-based wood coatings with acrylic as the main component; the other is the composite of acrylic and polyurethane as the main component The third is 100% polyurethane water-based paint, and its wear resistance is even several times that of oil-based paint. It is an advanced product in water-based paint.
From the perspective of environmental protection, water-based paints have natural advantages over oily paints (solvent-based wood coatings). In theory, the lower the VOC content, the higher the environmental protection, but the low VOC content has an impact on the abrasion resistance, hardness, and scratch resistance of oil-based coatings. The above indicators have also been technically needed to overcome waterborne coatings. . How to achieve both environmental protection and high quality is the focus of technological breakthroughs of major paint production enterprises.
The technical requirements of water-based coatings in terms of drying time, hardness, fullness and other properties are relatively high, the manufacturing process is relatively complicated, and large-scale production equipment is required to produce products with relatively stable performance, and the production cost is relatively high. This is also the reason why the price of water-based coatings of the same grade is much higher than that of oil-based coatings.
Hangzhou spraying machine, coating line, powder coating production line, coating line, spraying machine, electrophoretic coating, painting company, waterborne wood coatings used in painting equipment are far inferior to the decorative effects such as hardness, fullness, aging resistance, etc. Oily wood coatings, consumers with high demands on the home environment may even renovate after three to five years. Due to the low abrasion resistance of general water-based paints, most consumers choose to use water-based paints only on the wall, and oil-based paints are often used to scrub parts such as doors and windows and furniture.