Quote:
	
	
		| 
			
				 
					Originally Posted by Philip
					
				 
				... Another protective, red lead, was painted onto exposed iron as a primer because of its rust-proofing qualities. 
			
		 | 
	
	
 Filipe, you must be referring to what we call it over here "zarcăo" (from the Arab zarkún = fire colour). I used to sell it in retail when i worked in an ironmonger when i was a kid; heavy stuff. And i remember seen my father's workers applying it as a primer to house gates.