Hi, 
 
I have used white polyurethane paint with my canopy, but it seems to change colour over time (i.e. turns yellow).  I think this is related to the UV produced by the lamps.  So, I will be trying aluminum foil lining next time. 
 
Hope that helps. 
 
- Victor. 
		
	
		
		
		
		
		
	
		
		
	
	
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