We revealed to you the key to a good painting job by giving you the basics of surface preparation for new concrete. But how about previously coated concrete surfaces that need repainting? No worries, we got you covered! We will present a step-by-step guide to preparing concrete surfaces for repainting.  First things first, it’s a MUST to observe the condition of your old painted walls. Each coated concrete surface can have an existing problem that needs to be treated first before repainting. Here, we break down for you painted concrete wall issues and expert-approved tips on treating them.  How to Deal with Peeling Paint If the paint film does not adhere to your concrete anymore, then it’s best to scrape off all the loose, scaling, peeling, or flaking paint. Then, clean the surface to fully remove dust, dirt, or grease.  Check out this article to see if your walls have…