From north to suth, east to west

From snow blanketed landscapes to scorching coconut-scented breezes

From the sparkling blue coast

To the vast and boundless inland 

Prepainted steel sheets

With the vibrant appearance and practical performance

Are widely used in the architectural field

However, different usage environments pose challenges to the durability of prepainted steel sheets.In rainy and humid areas,prolonged exposure to moisture leads to corrosion. In regions with abundant sunlight, strong ultraviolet rays cause fading and patchiness,gradually diminishing their luster; In arid,sandy inland areas, wind-carried sand particles continuously impact the surface of the steel sheets,resulting in scratches on the paint film,The once-smooth surface gradually erodes,shortening the lifespan of the steel sheets to some extent.

Is there a product can both resist mechanical damage such as friction and impact and effectively defend against ultraviolet rays？

Silicone resins are a type of high-molecular compound with a silicon-oxygen （Si-O-Si）backbone, belonging to the the category of organic silicone materials.The Si-O bond has the ability to absorb and scatter ultraviolet light,reducing direct damage to polyester resins. Moreover, the chemical structure of silicon is stable, offering exceptional durability. 

Tianjin Xinyu's Silicon Modified Polyester（SMP）prepainted steel sheets introduce organic silicone components into the molecular structure of traditional polyester resins through chemical modification,enhancing the bond energy and resulting in superior performance.

Tianjin Xinyu testing center conducted a pencil hardness test on silicone-modified polyester prepainted steel sheets,and the results showed a pencil hardness of ≥3H.Such hardness ensures thatthe steel sheets can resist daily mechanical damage such as friction and scratching,reducing surface scratches,thereby extending the building’s service life.

In addition to excellent hardness,SMP prepainted steel sheets boast remarkable corrosion resistance,heat resistance and color and gloss retention. In a series of tests,sample demonstrated the following performance: UV aging UVA-340≥2000h，color change and gloss loss ≤ Grade3;neutral salt spray SST≥2000h，blister density and size ≤ Grade3（S3）；methyl ethyl ketone MEK≥100 cycles.

With exceptional performance, Xinyu's SMP prepainted steel sheets are not only suitable for regions with strong winds,sands and intense UV exposure but also for industrial buildings in sectors such as mining,as well as interior and exterior cladding systems for public buildings,providing robust protection for structures.

Only time can reveal true quality. With over two decades of exploration in the prepainted steel sheets industry. Tianjin Xinyu continue to deliver high-quality,customized coated steel sheets solutions for various industries and enterprises.