(1) Waterborne Coatings
The first is water-based wood paint with acrylic acid as the main component.
With acrylic emulsion as the main component, it is suitable for waterborne wood primer and matte paint. The main feature of this product is good adhesion, which will not deepen the color of wood, but the wear resistance and chemical resistance are poor. Because of the poor gloss, it is impossible to make glossy paint, with average hardness and poor film-forming performance. Because of its low cost and low technology content, it has become an entry-level product in the market.
The second is water-borne wood paint with acrylic acid and polyurethane as the main components, which is characterized by not only adhering to the characteristics of acrylic paint, but also increasing the characteristics of wear resistance and chemical resistance (the first two are mostly used in doors, windows and furniture). It combines the advantages of the above two types, has moderate cost, can be self-crosslinked, can also be used in two-component systems, has good hardness, quick drying, wear resistance, good chemical resistance and low or no yellowing degree, and is suitable for making bright matt paints, primers, outdoor paints and the like.
The third category is 100% polyurethane waterborne wood paint. The wear resistance of polyurethane waterborne wood paint is even several times that of oily paint, and it is an advanced product in waterborne coatings. Including aromatic and aliphatic polyurethane dispersions, the waterborne wood paint with aliphatic polyurethane dispersion as the main component has excellent yellowing resistance and is more suitable for outdoor use. They all have good film-forming properties, high self-crosslinking luster, good wear resistance and are not easy to produce bubbles and shrinkage cavities. But the hardness is average and the price is expensive, so it is suitable for bright topcoat and plate paint.
The fourth category is waterborne wood paint with waterborne two-component polyurethane as the main component. . The product adopts two components, one is waterborne polyurethane dispersion with -OH, and the other is waterborne curing agent, mainly aliphatic; The cross-linking reaction of these two components through mixed construction can significantly improve the water resistance, hardness, film fullness and gloss of waterborne wood paint.
Good adhesion and high yellowing resistance, especially suitable for outdoor painting. However, the structure of this product is complex and needs professional guidance. 2. Advantages and disadvantages of waterborne coatings
1, water-soluble coating, non-toxic and environment-friendly, does not contain harmful solvents such as benzene and free TDI.
2, the construction is simple and convenient, the common faults of oily paint such as bubbles and particles are not easy to occur, and the paint film feels good.
3. High solid content and plump paint film.
4. No yellowing, excellent water resistance and no burning.
5. Can it be constructed simultaneously with other coatings such as latex paint?
6. Some water-based paints have low hardness and are prone to scratches, so pay special attention when choosing.
Generally speaking, water-based paint is a good choice from the perspective of construction and environmental protection, except that the price is slightly higher. ?
2. Paint
Classification of coatings: At present, there are more than a thousand kinds of coatings on the market, with diverse colors and different names. However, according to the composition and properties, common paints are divided into the following categories:
? 1, raw lacquer, also known as natural lacquer, is divided into raw lacquer and cooked lacquer. Raw lacquer is toxic, and the paint film is rough, so it is rarely used directly. It is processed into mature paint or modified into various refined paints. Cooked paint is suitable for drying in humid environment, and the obtained paint film has good luster, toughness, stability and acid resistance, but it dries slowly. Modified quick-drying polishing paint, cosmetic paint, etc. Low toxicity and tough paint film.
It can be sprayed and brushed, with convenient construction, acid resistance and water resistance, and is suitable for advanced painting. ? 1, clear oil, also known as cooked oil and paint mixing oil. It can be used as oil for preparing original paint and antirust paint, and can also be used alone. Some transparent oils (diluted paint and red lead) can be coated on wood or metal respectively for rust prevention and corrosion prevention. Adding proper amount of pigment can make colored and clear oil. ?
3, thick paint, also known as lead oil. It is a mixture of pigment and soil oil, which can only be used after being diluted with oil and solvent. It is widely used as primer for surface layer, and can also be used as surface coating alone. Suitable for building with low requirements, backing of wood, and filling materials of water pipe joints.
4. ready mixed paint, also known as ready mixed paint. It is the most commonly used paint. Soft and uniform texture, moderate density, corrosion resistance, sun resistance, long-term durability, strong hiding power, good durability and convenient construction. It can be divided into oily ready mixed paint and magnetic ready mixed paint, and the latter is now named Dodan ready mixed paint. The magnetic ready mixed paint is suitable for indoor use,
This ready mixed paint is better than oily ready mixed paint, and its paint film is hard, bright and smooth, but its weather resistance is worse than oily ready mixed paint. 5. varnish varnish is divided into two categories: oily varnish and resin varnish. The former is commonly known as "stagnant water" and the latter is commonly known as "stagnant water", which is a kind of paint without pigment. The resins used in resin varnish mainly include polyester resin, polyurethane, acrylic resin, etc. ?
6. Enamel is based on varnish and ground with pigment. After drying, the coating is magneto-optical and hard. Commonly used are phenolic porcelain and alkyd enamel, which are suitable for metal screen mesh. Anti-rust paint has zinc yellow and iron red epoxy primer, and the paint film is tough and durable with good adhesion. If it is used with ethylene phosphating primer, it can improve the heat resistance and salt spray resistance, and is suitable for metal materials in coastal areas and warm areas.
7. Super environmentally friendly plant paint. The published natural plant-based paints and coatings are different from chemical coatings from raw material selection to processing and manufacturing. Its raw materials are selected from more than a dozen natural plants such as linseed oil, orange oil, sycamore oil, hemp resin, turpentine oil and loquat oil. It is a brand-new high-tech coating that conforms to the natural ecological balance. Just as tung oil has been used to make lacquerware since ancient times, natural plant-based coatings can be applied to the top surface of living room walls and home surfaces, and will not cause any harm to the human body during the brushing operation and when it volatilizes after brushing.
The above is about the classification and characteristics of wood lacquer, I hope to help you.
Unlike chemical coatings. Its raw materials are selected from more than a dozen natural plants such as linseed oil, orange oil, sycamore oil, hemp resin, turpentine oil and loquat oil. It is a brand-new high-tech coating that conforms to the natural ecological balance. Just as tung oil has been used to make lacquerware since ancient times, natural plant-based coatings can be applied to the top surface of living room walls and home surfaces, and will not cause any harm to the human body during the brushing operation and when it volatilizes after brushing. The above is about the classification and characteristics of wood lacquer, I hope to help you.