Galvanic Corrosion
		
		
				
					
					
				
				
		
			
				
					
	
		
			
			
				
					
 Originally Posted by 
NavyDiver
					 
				 
				Very Nice. Did you add some rubber between the steel and aluminum? You might like to do that if not to stop possible Galvanic Corrosion. 
Regards ND
			
		 
	 
 Hi ND,
Thanks for the suggestion... I did think about that, but given that I have given the steel a number of coats of rust proof paint as an insulator and there is pretty low anodic voltage difference of around 0.1V between the steel brackets and the cast aluminium racks... they should be OK.  I have read that if the difference is below 0.15V on the anodic index in outdoor conditions you should have little corrosive effect (providing you aren't a boat).  The original Rhino Rack brackets were powder coated steel.  Galvanised steel and aluminium on the other hand is a bad combo... and stainless steel and gal is a real corrosive mix.
Interesting point you raise though... as it makes you think of the combination of aluminium and steel in the Disco chassis and panels.
Time will tell all....
Cheers
Naps
				
			 
			
		 
			
				
			
				
			
			
				MY16 D4 SDV6 HSE 3.0L MOAB 265/60R18 KO2 - Carbon 12K Winch - DO 35 Hitch - RedARC TowPro - Rhino Rack Backbone & Pioneer Platform - Front Runner Ladder - 100Ah 'The Lithium Box' - Full Boar Fourbie Drawers & Travall - APT Front/Sump/AC/Sliders - Safari snorkel - Oricom DTX4200 - Cel-Fi - GAP IID - TyreDogs
			
			
		 
	
Bookmarks