You need to wash to remove dirt, mildew and as much chalky paint as possible, and Jomax from Zinnser is a good product for this. You can wash this off with a power washer to help in removing the chalk.
As far as priming you should an exterior primer from the company that makes the finish coat. If they make an oil based primer made for masonry that will do a good job with the chalk remaining after washing, and don't add kerosene to paint ever as it is not a paint thinner. I have had great results with adding a quart of emulsa-bond per gallon of an exterior acrylic primer. The finish paint should be a 100% acrylic house paint in either a flat or satin finish. No matter what brand you get be sure to get the premium line as it is your best value. You are smart in staying away from HD for your paint needs.
Hope this helps out. |
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