Polyurethane coating film bright and full, hard wear-resistant, oil, acid, chemical and industrial waste gas resistance, good electrical properties, and a variety of resin miscible, can be adjusted in a wide range of formulations to meet different needs. Widely used in wood, automobile, aircraft, machinery, electrical appliances, instruments, plastics, leather, paper, fabric, petrochemical and other aspects. First, the characteristics and applications of polyurethane coatings  Polyurethane coatings have high mechanical wear resistance and toughness. At the same time, polyurethane coatings are both protective and decorative, and can be used for high-end wood, piano, large passenger aircraft and other coating. Polyurethane, like epoxy, can be configured as an excellent adhesive. Therefore, the film has excellent adhesion to a variety of surfaces (metal, wood, rubber, concrete, some plastics, etc.). Second, polyurethane coating is non-toxic and environmentally friendly Polyurethane waterproof coating, a new polymer multifunctional material. The waterproof coating has good water resistance, impermeability, heat insulation, corrosion resistance, extensibility, bonding strength, black color, long service life, low price, cold construction, easy to use, small odor. Polyurethane waterproof coating is a new type of waterproof material which is non-toxic, odorless and has good decorative effect. Now the polyurethane waterproof coatings are upgraded, all environmentally friendly coatings. Polyurethane waterproof layer has good waterproof and impermeability, heat insulation and anti-corrosion effect, its high bonding strength, good extensibility, strong corrosion resistance, long service life, cold construction. The polyurethane coating has non-toxic and tasteless and good decorative effect, is a new generation of waterproof material varieties.

Fabric coating finishing is to evenly coat a layer of molecular film on the surface of the fabric to give the fabric with various functions and expand the use of the fabric. Compared with other coating materials, polyurethane coating has high tensile strength, large elongation, good elasticity, good wear resistance, heat resistance, low temperature resistance and aging resistance, and is a high-quality coating material. The main processing methods of polyurethane coated fabrics are dry and wet. Dry coating can be divided into direct coating and transfer coating, especially transfer coating. Direct coating is the coating agent directly coated on the surface of the fabric, mainly used to make thin waterproof clothing. Transfer coating is the preparation of the solution type polyurethane slurry on the release paper, after drying to form a film, and then the use of adhesive, extrusion, drying to make the base cloth and film closely together, and finally the release paper peel, can form a coated fabric with a pattern. There are three main wet coating methods: direct coating method, that is, the prepared polyurethane slurry is first coated on the substrate, and then wet solidified to form a porous cortical film; The second is the film method, that is, the polyurethane slurry is coated on the polyurethane film, the wet film is formed into a porous layer, and then it is fitted on the background cloth; The third is the impregnation method, that is, the base cloth is impregnated in the polyurethane slurry, and then the excess slurry is scraped away, and then the porous skin film is formed by wet solidification. Sinogracec Chemical is a service-oriented company with functional textile technical services as the core, which can provide customers with waterproof, antibacterial, flame retardant and other functional solutions such as clothing, leather, luggage, wall cloth wallpaper, yarn, ribbon, shoe materials.

Leather finishing is generally divided into three parts:Primer coat, middle coat, and topcoat.Primer requires strong adhesion, hiding power, good embossing formability and stereotyping, and the middle coating further covers and modifies the color, and finally achieves the visual and physical performance requirements through the topcoat.With a specific topcoat, the effect of extinction or light can be created. Waterborne polyurethane resin is the main material commonly used in leather coating. Its film forming performance is good, the bond is firm, and the coating has the characteristics of high wear resistance, high elasticity, water resistance, weather resistance, cold resistance, chemical resistance and so on.After finishing, the finished leather feels full and comfortable, which improves the grade of the finished leather and plays a role in protecting the leather. In order to meet customers' pursuit of quality and meet the most stringent environmental requirements,SinograceChemical launched two single-component waterborne polyurethanes, which are polymerized from aliphatic isocyanates.Excellent adhesion, good adhesion resistance, comfortable feel, no yellowing, good weather resistance. The products are widely used in leather shoes, belts, sofas and luggage leather and other leather products. For leather top finish to provide excellent gloss and permeability, excellent wear resistance and weather resistance. If you want to know more about Water-based polyurethane topcoat for leather information, or need samples, please contact us. Contact Us mailbox:sales@sinogracechem.com

water base varnish for glass Does not contain benzene, esters and other harmful solvents, does not contain free TDI, does not burn, is the latest environmental protection glass process paint, by the international and other authoritative verification institutions assessed as the real green environmental protection products. Solve problems It is required to blister at 75℃ for 30 minutes and it is required to be dense. Soak in ethanol for 48 hours without fading. Water-based glass paint is a water-based varnish used on glass substrates. At present, there are single-component self-drying type, single-component baking type, two-component self-drying type. Single-component self-drying type is prepared by water-based polyurethane emulsion and adhesion enhancer; The one-component baked type is prepared by emulsion containing -OH or carboxyl group and water-dilutive amino resin; The principle corresponds to oil-based baking paint. The two-component self-drying type is composed of water-based epoxy resin plus binary amines, etc., and the principle corresponds to the two-component self-drying paint, such as epoxy floor paint, two-component PU paint, etc. Pure water-based glass paint belongs to glass base varnish. What is the difference between water-based glass varnish and oil-based glass varnish? 1.Water-based glass varnish water as a diluent, and oily glass paint generally use banana oil (banana water) to do diluent, everyone knows that banana oil (banana water) is toxic, from this point of view water-based glass paint is more environmentally friendly and safe than oily glass paint, and when cleaning the spray gun and mold with water-based glass paint, you can clean it with water. And the use of oil-based glass paint, usually use the water (banana water) to clean the spray gun and the like. 2. The aging resistance of water-based glass varnish is stronger than that of oil-based glass varnish. 3.In terms of adhesion, water-based glass varnish is better than oil-based glass paint. 4. Water is more expensive than oil. Sinograce Chemical production for glass ink resin, applied to various types of glass, high hardness, good wear resistance, uv resistance, good water resistance, good adhesion.