avoid deterioration, first, a ‘Marine Grade Casting’ is necessary… which is a special mixture of various metals for added protection. Unfortunately, some wrought iron companies will not make you aware of this to keep their material costs low. Avion Metal Works of Florida includes ‘Marine Grade Casting’ as a standard practice. Please read on for important information.
These spear points illustrate the coherent coating of marine grade castings in excellent condition after one year on the beach.
There are many steps necessary to providing a good, hard, coherent coating to aluminum castings. These steps include proper cleaning and rinsing, degassing, and proper curing of the coating. However, even if these steps are followed, sufficient evidence from on-site inspections and field reports suggests that another step is necessary on your part: using marine grade base material. The marine grade approach offers added protection for long life and better looks. Also: See our article’ ‘Wrought Iron or Aluminum. The Choice’. The rapid flaking and peeling of coatings from aluminum castings in a severe weather environment or normal slower deterioration in a milder environment can be resisted with the proper selection of marine grade base metal aluminum casting to resist corrosion and improve coating performance.