Types and Characteristics of Coatings for Colored Steel Plates
PE
Description Ordinary polyester color plate is the use of PE polyester coating coated on the metal plate, and then by high temperature baking made of metal paint color plate.
Features PE paint for the material has good adhesion, color coating steel plate easy processing molding, cheap and many products, color and gloss choice. Polyester coating stoidability and powder resistance to coating film is not ideal, so the use of PE coating is still subject to a number of restrictions.
Life Anti-corrosion period of up to 7-8 years.
Application Generally used in areas where air pollution is not serious or products that require multiple moldings.
SMP
Description Silicon modified polyester color plate is the use of SMP silicone modified resin adhesive paint coated on metal plate, and then by high temperature baking made of metal paint color plate.
Features The coating has good hardness, wear resistance and heat resistance, as well as good external durability and non-powderability, but limited gloss retention and flexibility.
Life The age of corrosion protection can be up to 10-12 years.
Application SMP color coated steel plate is not suitable for many molding applications, most of the use of the roof and exterior walls of the building.
HDP
Description High weather-resistant polyester color plate is also known as high weather-resistant color plate, is the use of HDP high weathering polyester coating coated on the metal plate, and then by high temperature baking made of metal baking plate.
Features For PE and SMP's shortcomings, the UK HYDRO (now acquired by BASF), Sweden's BECKER, etc. in early 2000 to develop a PVDF coating can reach 60-80% weather-resistant HDP polyester coating, and better than ordinary silicon modified polyester coatings.
Life Its corrosion-resistant life can be up to 10-15 years.
Application suitable for such as high uv protection requirements of light steel structure buildings, flat-grade roofs.
PVDF
Description Fluorocarbon color plate is the use of PVDF Poly-fluoroethylene coating coated on metal plate, and then baked by high temperature made of metal paint color steel plate.
Features Because of the PVDF chemical bonds and chemical bonds, there is a strong bond energy, so the coating has very good corrosion resistance and color retention, in the construction industry color coating plate coating, belongs to the most advanced products, and the molecular weight is large and straight-bond structure, so in addition to chemical resistance, mechanical properties, UV and heat resistance is also very special.
Life Its corrosion-resistant life of more than 20 years.
Application suitable for anti-UV, high weather resistance requirements of chemical plants, power plants, steel mills, high-speed rail stations.