The difference between oily paint and water-based paint
1. Compared with quality and performance, the comprehensive performance is average.
1, hardness:
Due to the advanced water-based acrylic acid synthesis system, the water-based wood paint can reach the physical index of 2 hours when the paint film is completely dry. Because organic curing agent (TDI) is added to ordinary polyurethane paint, the hardness of the paint film using ordinary polyester paint is the highest. Nitrate paint (oily paint) needs to be brushed many times, and the film hardness is the worst!
2, feel:
Plumpness: polyester paint has the best effect on the feel and fullness of paint film, and the water-based wood paint adopts Bo Tu+"virtual texture" technology, which greatly improves the feel and fullness after painting; However, the feel and fullness of nitrocellulose lacquer film are not very good.
3. Wear resistance, yellowing resistance and durability:
High-end waterborne wood paint adopts advanced film-forming technology, which makes the surface of the paint film hard, wear-resistant and elastic, and will not turn white due to collision; But also does not yellow, and the paint film remains clear and transparent for many years; It is resistant to artificial aging for 800 hours and durable outdoors. However, oily paint has the disadvantages of easy collision, whitening and yellowing, and can not maintain the effect for a long time.
Second, compared with environmental protection and health, water-based paint has absolute advantages.
1, environmental protection:
As water is used as the diluting solvent, water-based paint has ultra-low VOC content (lower than the national mandatory standard of 200mg/L), and it is a truly nontoxic and odorless high-tech environmental protection product. However, organic solvents (banana oil and Tianshui) are used as diluents for oily paints, and their products contain benzene, toluene, xylene and their derivatives. In addition, polyester paint also needs curing agents (including TDI), so polyester paint has the highest toxicity, followed by nitrolacquer.
2. Flammability:
Water-based wood paint uses water instead of organic solvent, and the product is safe and nonflammable. Greatly reduce the dangerous factors and troubles in production and circulation. Oily paint contains benzene, xylene, acetone, solvent gasoline and diluent, which is highly flammable.
3, stimulate the smell:
Water-based wood paint uses water instead of organic solvent, and its products will not produce any irritating smell when painted. Oily coatings contain organic solvents, which will volatilize into the air during brushing and drying, directly stimulating the sensory organs of the human body.
4. Check-in time after painting:
Waterborne wood paint is non-toxic and tasteless, environmentally friendly and safe; You can check in after painting. Because the organic solvent of oily paint will emit harmful gases during the drying process, the house decorated with oily paint cannot be moved in directly after painting, and it needs to wait for a period of isolation.
Third, the appearance
1, smell
Waterborne paint: it contains no harmful carcinogens, is nontoxic and tasteless, and can be used after brushing.
Oily paint: It contains a strong pungent smell, which is unbearable. In gas,
It contains a lot of harmful substances, which is harmful to human health. Generally, after 1-2 months, the strong pungent smell volatilizes to be basically tasteless, but after 10- 15 years, a lot of harmful gases will still be released and volatilized.
Step 2 show up
Water-based paint: Because it contains no harmful substances and will not volatilize into the air, it is not prone to yellowing and other defects, and it will last as long as new.
Oily paint: harmful substances are released and volatilized for a long time, which is easy to yellow and has poor durability.
Waterborne paint: A new generation of PU waterborne paint products are not inferior to oily paint in terms of film fullness, hardness, scratch resistance, etc., and can also produce a unique effect on high-end furniture that oily paint can't achieve.
Oily paint: The film quality is good, but it is hard and brittle, and it is not easy to repair after being damaged.
Step 3: Store.
Waterborne paint: non-flammable, no special storage requirements.
Oily paint: extremely flammable and must be stored separately according to fire control requirements.
Fourth, the comparison between construction and cost is basically the same.
1, easy to construct:
Water-based wood paint only needs to be diluted with water, and there is no need to add natural water or curing agent, so it is convenient to use directly during construction; However, thinner or related curing agent should be added to oily paint, and the proportion must be fixed. Therefore, oily paint needs the guidance of professionals in the construction process.
2, paint waste, brushing times:
After the water-based paint is used up, the remaining paint can be stored in a cool place for further preservation; However, oily paint can only be used once because of the addition of curing agent, which will waste the remaining paint. In terms of brushing times, four times of water-based paint can achieve the effect of seven or eight times of nitrocellulose paint.
3. Repairability:
Wood furniture painted with water-based paint can be directly covered and painted during maintenance; When repairing wooden furniture with oily paint, you must first polish off the old paint film with sandpaper and then paint it.
4, coating labor costs, expenses:
The use of water-based paint requires less paint per square meter, generally about 30M2/Kg at a time, and there is no need to add thinner, so the working hours are less. Therefore, the cost of using waterborne wood paint is basically the same as that of using oily paint.
5. Building performance
Waterborne paint: No special requirements. You can paint after simple training, which is very convenient for you to paint and repair yourself.
Oily paint: Only after professional training and practice can you paint. Because of its strong professionalism, it is difficult for ordinary people to brush it well.
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