I have known people to use Bondo on above water line to do screw holes and stuff. 
 
I would NOT use below the water line as Bondo will absorb water if not primed and painted right!  They just don't match even all painted.
		 
		
		
		
		
		
		
			
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				1986 V20   
Old Fishermen never die, we just SMELL that way!!
			  
		
		
		
		
		
	
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