What characteristic does coloured besmear board have PPGI prepainted galvanized steel coil to hot galvanized plate, hot galvanized zinc plate, hot galvanized plate and so on as the base plate, after the surface layer of normalization treatment, in the surface layer coated with a layer or several layers of organic chemical building coatings, followed by baking dry solid goods. Also for a variety of different colors of organic chemical architectural paint roll steel plate for famous, commonly known as PPGI roofing sheet. So what are the characteristics of the painted board?
Color coated board has the following commodity characteristics: with excellent performance, corrosion resistant working ability and galvanized board compared with longer service life; With excellent temperature resistance, compared with galvanized board in high temperature is more difficult to fade; Excellent thermal reflectivity; Has the similar production processing characteristic and the spray paint characteristic with the galvanized sheet; Excellent welding characteristics. With excellent cost performance, durable features and competitive prices.
Storage problems of color coating rolls
Colour besmear coil board is long-term not applied, people should do well store put a job, if store not good meeting generation is destroyed, how should that people store appropriately put it? What are some common problems?
The painted coil should be stored in a clean natural environment to prevent corrosion of various corrosive media. PPGI corrugated roofing sheet should be stored in the dry manic natural ventilation of indoor air, prevent outdoor storage and storage in the area prone to condensation and temperature difference change. The road surface of the storage site shall be smooth, free of hard blocks and have sufficient load work. Vertical coil steel shall be placed on the equipment such as rubber mat, wood pad and fixed bracket, and the binding buckle and lock shall be upward. In order to prevent extrusion injury, generally do not stack storage, stack storage to strictly limit stack column height.
The physical properties and some coating properties, such as pencil hardness, t-bend value and impact power value, will change greatly with the increase of storage time. The storage place shall leave enough indoor space for the application of a hoisting machine and equipment. Solve the storage of thick steel plate and coil of steel to carry out effective distribution for easy access, as far as possible to reduce unnecessary movement.
PPGI coil existing deficiencies
Nowadays, the use of color steel coil is very common, because it has quite high environmental protection characteristics, so by everyone’s love, but all products are not perfect, below let’s understand the shortcomings of PPGI prepainted galvanized steel coil.
Although the production capacity of hot-dip galvanized substrates for decorative building materials is quite large at the present stage, it is lack of excellent substrates such as hot-dip galvanized steel coil and zinc alloy coated steel coil without zinc-blooming leveling. Domestic building coating types, quality can not be thoroughly considered requirements, the high price of imported building coating reduces the competitiveness, glass film colorful board needs plastic film to rely on imports, the lack of coating thickness, versatility, high toughness, colorful patterns of high-end PPGI corrugated sheet;
The lack of standard products leads to serious waste and extravagance of resources, excessive generating units with low production capacity, and problems in product quality, environment and resource maintenance. Nationwide construction of painted generator sets too much, far more than the market demand, resulting in many painted generator sets production and sales rate is very low, so that the shutdown.
Above is the problem of PPGI prepainted steel coil, hope we have some understanding, if there are any problems, please feel free to inquire.