This is an exterior question. In 2011 I brush painted my 1923 house. The coverage was great and I used 3.5 gallons for the whole (small) house. In 2012 I used that remaining half gallon to paint some of the garage and touch up the SW sides of the house that get strong afternoon sun. I still had three unopened gallons of the original paint. I didn't mix the various gallons of paint together when I started, but had no problems with them looking different. So this summer I had some more touch ups needed on the west side. I pulled out an unopened gallon. I *think* my mistake was this: I didn't mix it well. It seemed like I stirred forever, but I did note that the top still seemed thin. But I stupidly forged ahead. Second mistake was that I only waited an hour to put on a second coat, which I got away with on initial painting in 2011. I painted late in the day and woke up to fog this morning. Long story short, it looks TERRIBLE. The color doesn't match AT ALL, but worse is that the sheen is shiny, instead of the matte of the rest of the wall. And there's a "wet" layer on top. That may be the fog, but the 2011 paint doesn't have this layer. So I need to paint again, and need to stir better, clearly. Is there anything I need to do to prepare the crummy layer to repaint? There's lead, so I can't sand too far down. Thanks for any advice you can offer!

Hi all - Does anyone having any experience repainting brick homes? If so, what product do you recommend? I currently have what looks to be two aged coats of paint on the brick. I will do the requisite prep-work to ensure anything loose, cracked, or chipping is removed. The contractor I just received an estimate from thinks Sherwin Williams Loxon XP may be the best choice, but my SW rep says it is too heavy and may pull off the old paint. He recommends spot priming and using a light top coat like A-100. I'm hoping to get some insight so that I don't have to paint the house again in the very near future.