Powder coating using a shot blast to achieve the required Rz and zinc rich primer powder pre treatment can with a properly run system and decent powder achieve a minimum of 2500 hrs salt spray test. It may not sound a lot.....but under body parts for passenger cars have typically a 750hr salt spray requirement! A lot of powder coating won't reach 100hrs (10hours being typical) as the process may look simple but it takes an awful lot of knowledge to get it to operate correctly.
Shot blast, zinc phosphate primer with electrophoretic (EP) and powder on top is a better process, and achives when done correctly similar salt spray test hours (2,500hrs). There are a few plants in the Uk that can do this.
The last option that can achieve excellent results is again shot blast, zinc phosphate pretreatment and then put through an A plant with powder again on top. The powder coating provides UV protection.
I would never weld galvanised parts without special extraction gear, the fumes are toxic.
Looks a great product, well done.
Shot blast, zinc phosphate primer with electrophoretic (EP) and powder on top is a better process, and achives when done correctly similar salt spray test hours (2,500hrs). There are a few plants in the Uk that can do this.
The last option that can achieve excellent results is again shot blast, zinc phosphate pretreatment and then put through an A plant with powder again on top. The powder coating provides UV protection.
I would never weld galvanised parts without special extraction gear, the fumes are toxic.
Looks a great product, well done.
