Jiangsu Boruixin Aluminum Technology Co.Ltd.,
The aluminum products with Hard Anodization have a better performance than those with only anodization. Thickness of anodized film is 5 to 20 microns. However, the hard anodized film can reach to 60 to 200 microns. It has a performance of good heat resistance. The melting point of hard anodized film is as high as 2320K. It also has characteristics of excellent insulation. It is so good in corrosion resistance that it can resist corrosion for thousands of hours in salt frog of ω = 0.03NaCL.