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				Plastic Radiator?
			 
			
			My Nissan has a hairline crack in the top of its radiator. The radiator is plastic (that's a new one on me), so I bought a new one, but I need to limp along on this one until the weekend when I can do the install. It's leaking a little, and I was wondering if some crazy glue will get me to the weekend? 
		
	
		
	
			
				Any ideas? Thanks. (Damned water-cooled cars)  | 
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			I don't know if I would trust super glue.  Every time I have tried to "make it to the weekend" with a leaking radiator, it has come back to haunt me.   
		
	
		
	
			
			
		
		
		
		
		
			BTW, lots of plastic radiators these days... Mike 
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	Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes  | 
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			Could you use a soldering iron to "weld" the crack up? I've done this with plastic bumpers before
		 
		
	
		
	
			
			
		
		
		
		
		
			
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	Jake Often wrong, but never in doubt. '81 911 euro SC (bits & pieces) '03 Carrera 4s '97 LX450 / '85 LeCar / '88 Iltis + a whole bunch of boats  | 
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			Chances are, the plastic is a thermo-set material which means once it has been processed and cured you can't melt it back.  Plastics are catogorized into two families - Thermoplastics (which can be remelted and molded) and Thermosets (which can not be re-processed or remelted without draqstically changing the physical properties).  
		
	
		
	
			
			
		
		
		
		
		
			For high temp, automotive applications, thermosets are typically used. Not sure you will want to try a repair job to get you through. 
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	Michael D. Holloway https://simple.m.wikipedia.org/wiki/Michael_D._Holloway https://5thorderindustry.com/ https://www.amazon.com/s?k=michael+d+holloway&crid=3AWD8RUVY3E2F&sprefix= michael+d+holloway%2Caps%2C136&ref=nb_sb_noss_1  | 
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			You are replacing it anyway, why not try the raw egg sealer method for the weekend?
		 
		
	
		
	
			
			
		
		
		
		
		
			
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			Duct tape?  A bottle of Radiator Stop Leak?  Bars Leak?
		 
		
	
		
	
			
			
		
		
		
		
		
			
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			JB Weld the crack.
		 
		
	
		
	
			
			
		
		
		
		
		
			
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			 Information Junky 
			
			
		
			
				
			
			
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		 Quote: 
	
 I've done this (weld) to plastic radiators w/ good results. Tho' admittedly, I may have snuck-in some carbon fiber to add some strength to the area. oh, try not to breath the fumes. 
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			every time I have used stop leak...........water pump bearing fails  after that.............
		 
		
	
		
	
			
			
				
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