Views: 3 Author: Site Editor Publish Time: 2022-11-25 Origin: Site
Color-coated aluminum (color-coated aluminum coil), common polyester color-coated aluminum (color-coated aluminum coil), is widely used in aluminum honeycomb panels, aluminum ceilings, roof surfaces, scraps, and its performance is very stable and not easily corroded. A new shape.
The coating of color-coated aluminum coils is divided into: polyester-coated aluminum coils (PE), fluorocarbon-coated aluminum coils (PVDF). The polyester coating formed by baking the surface of the aluminum plate many times can form a solidly adhered continuous Solid films have protective decorative properties. It is an anti-UV coating. The polyester resin is made of a high molecular polymer containing ester bonds in the main chain, and an alkyd resin is added. The ultraviolet absorber can be divided into matt and high-gloss series according to the gloss. It can endow colorful aluminum products with rich colors, good gloss and smoothness, as well as superior texture and feel, and can also increase the sense of layering and three-dimensionality. It can protect objects exposed to the atmosphere and be attacked by ultraviolet radiation, wind, rain, frost and snow; due to temperature differences, freeze-thaw cycles, corrosive gases and microorganisms, the coating can play a protective role. Especially suitable for interior decoration and advertising boards.
Fluorocarbon Coated Prepainted Aluminum Coil (PVDF)
Fluorocarbon coatings are PVDF resins, mainly referring to vinylidene fluoride homopolymers or copolymers of vinylidene fluoride and other small amounts of fluorine-containing vinyl monomers. The chemical structure of the hydrofluoric acid base material is bonded by fluorine/carbon bonds. The stability and firmness of this chemical structure make the physical properties of fluorocarbon coatings different from ordinary coatings. In addition to the abrasion resistance and impact resistance in terms of mechanical properties, it has excellent performance, especially in harsh climates and environments, it shows long-term fading resistance and UV resistance. After high-temperature baking to form a film, the molecular structure of the coating is tight and has super weather resistance. Fluorocarbon coatings can be divided into traditional fluorocarbon coatings and nano-fluorocarbon coatings according to the surface film formation structure. In 1965, Pennwalt Chemical Company of the United States first used fluorocarbon coatings to meet the needs of coating indoor and outdoor aluminum materials in high-end buildings. The wide choice of colors, the solemn appearance of the United States, and its durability have added luster to many magnificent curtain wall buildings around the world. Coating manufacturers guarantee the service life of coatings starting from 10 years, 15 years to more than 20 years. American research institutions have tested and compared fluorocarbon coatings, super coatings, and general coatings. The samples of the respective coatings were exposed to hot sunlight in Florida, USA, and exposed to the harsh environment of humid and salty air for 12 years. In 2010, it was actually proved that the stability and durability of fluorocarbon coatings are 30 and 80 percent higher than the other two coatings, and fluorocarbon coatings ensure the use in various harsh environments.
It is especially suitable for the decoration and display of indoor and outdoor decoration in public places, commercial chains, exhibition advertisements, etc.
There is no compound high temperature indentation on the surface. There is no residual stress on the board surface and no deformation after shearing.
Painted with wood grain and stone grain, it has a realistic physical texture and a vivid natural beauty. The pattern can be made at random, giving customers a wide range of individual choices, enriching the humanistic connotation of the product, and giving people more aesthetic enjoyment.
The baked varnish pattern formed by continuous coating and high temperature baking has high gloss retention, good color stability, and minimal change in color difference. Polyester paint has a 10-year warranty, and fluorocarbon paint has a 20-year warranty.
High-quality aluminum materials, plastics and adhesives are selected, and advanced composite technology is adopted. The product has the bending and flexural strength required by the decorative board. In the four seasons, changes in wind pressure, temperature, humidity and other factors will not cause bending, deformation, expansion, etc.
Corrosion resistance to saline alkali acid rain, it will not corrode and produce poisonous bacteria, will not release any toxic gas, will not cause keel and fixing parts to rust, and is flame retardant. Not lower than B1 level according to national regulations.