What is the difference between water-based coatings and solvent-based coatings?

Nowadays, people pay attention to low-carbon environmental protection, so in the decoration, most people will choose some more environmentally friendly paint. Today, we will focus on environmentally friendly waterproof coatings, waterproof coatings are mainly divided into two forms of coatings: water-soluble coatings (water-based coatings) and solvent-based coatings. So what is the difference between these two waterproof coatings? Let the editor take everyone to understand it!
difference between water-based coatings and solvent-based coatings can be stated from the following angles:
A. Different parts of the coating
1. Different resins
chinese
. The resin of water-based coating has water-soluble
dispersed (dissolved) in water; Water-based coatings can be added in any proportion with DIWater (deionized water), while solvent-based coatings can only be diluted with organic solvents (tasteless kerosene, light white oil, etc.).
B. Paint construction requirements vary
1. For the construction environment, the freezing point of water is 0 degrees C, so water-based coatings can not be constructed below 5 degrees C, and solvent-based coatings can be constructed above -5 degrees C, but the drying speed will slow down, the interval between the channels will be length longer;
2. For the construction viscosity, water viscosity is poor, water-based coatings in the addition of thinning and reducing viscosity will be relatively troublesome (reduced viscosity will greatly reduce the solid part of the paint work liquid, affecting the coating cover force, increase the number of construction channels), solvent-based regulation of viscosity is more convenient, viscosity restrictions will also affect the choice of construction methods;
3. For dry curing, water-like paint is more delicate, humidity is too low temperature can not be very good curing, drying time is extended, but if heating heating, water-like paint also needs gradient heating, instantaneously into the high temperature environment, water-like paint table dry after internal water vapor spillage will cause pinholes and even large areas of foam, because water-like paint only water as a thinner, no volatile gradient. Solvent-based coatings, thinners for the boiling point of different organic solvent composition, there are multiple volatile gradients, flash (after construction to enter the oven before the drying period) into the high temperature area baking will not appear similar phenomenon.
's "The Story of Light and The Hope"
C. Different decorative film after film
C-1. Different gloss expression
1. Solvent-based coatings can control the fineness of pigments according to grinding, not easy to reverse coarseness in storage, by adding resin control coating PVC (pigment ratio), additives (such as anti-gloss agents) to achieve changes in coating gloss, gloss can be matte, matte, semi-matte, high gloss. Automotive paint gloss can be as high as 90%;
2. Water-based paint gloss expression is not as wide as oily paint, high gloss expression is poor, because water in water-based paint as a thinner caused by the volatile properties of water-based paints make it difficult to show more than 85% of the high gloss.
C-2. Color expression is different
1. Solvent-based paint filler selection range, can be inorganic but organic, so you can adjust a variety of colors, color expression is excellent

's "The Story of Light and The Hope"
D. Storage and transportation
water-based coatings do not contain flammable organic solvents, storage and transportation is relatively safe, pollution can also be diluted with a large amount of water flushing, but water-based coating storage and transportation have temperature requirements, minus 5 degrees C on the need for insulation transport and storage, otherwise there will be milk-breaking and other ills.
's "The Story of Light and The Hope"
E. Functional beyond
solvent-based coatings are mostly organic products, organic products in high temperature conditions will appear chain break, carbonization and other series of problems, the current maximum temperature of organic products do not exceed 400 degrees C.
water-resistant coatings using special inorganic resins of special high temperature-resistant coatings can withstand temperature thousands of degrees, such as ZS series of high-temperature water-resistant coatings in addition to taking into account the anti-corrosion, anti-oxidation properties of conventional coatings, but also long-term high temperature resistance, up to 3000 degrees C high temperature, which is solvent-based coatings can not reach the height.
G. Differences in safety and environmental protection
Solvent-based coatings in the production, transportation, storage, use of the process of fire, explosion of safety hazards, especially in confined space construction, but also easy to cause suffocation, explosion. At the same time, organic solvents will also cause some damage to the human body. The most famous case is the toluene carcinogenic case, which is no refore allowed to be used. Solvent-based coatings VOC high, conventional products even as high as more than 400, enterprises in the production and use of solvent-based coatings environmental protection, safety pressure is greater.
water-based coatings in the production, transportation, storage, use of links are environmental protection, safety (with the exception of some informal manufacturers of pseudo-water-based coatings), for the corresponding national policies to save energy and reduce emissions, safety and environmental protection has made a great contribution.
conclusion:
water-based coatings, solvent-based coatings have advantages and disadvantages, because the study of water-based coatings is not yet mature, water-based coatings can not fully meet the needs of social production, solvent-based coating applications are still necessary, we can choose the paint according to the actual situation of analysis and determination, and not because of a certain type of paint shortcomings and a hammer negative. I believe that with the deepening of water-based coatings research, one day environmental protection, safety of new coatings will be widely used in every corner of the earth.