staining on aluminum siding

09-23-2006, 11:10 PM	#1
gerlawson Newbie   Join Date: Sep 2006 Posts: 1	staining on aluminum siding My old aluminum siding has just been repainted and stains are beginning to appear. It was power washed and dried before painting and an appropriate paint was used. What could be happening?

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09-23-2006, 11:27 PM	#2
mdshunk World famous jerk.   Join Date: Dec 2005 Location: central PA Posts: 440	staining on aluminum siding Quote: Originally Posted by gerlawson ...and an appropriate paint was used. I think you're assuming too much. Either an appropriate paint was not used, or there were stains that were not appropriately sealed/primed prior to the application of the paint. What exactly are these stains?

09-24-2006, 11:17 AM	#3
redline Member   Join Date: Mar 2006 Posts: 2,083	staining on aluminum siding may need a primer/stain blocker applied before top coat.