How to Block Tough Wall and Ceiling Stains

Ever had a massive stain on your walls or ceiling? Usually in my work as a interior painter in Northern Kentucky I find a lot of water stains on ceilings. The cause is most often always a leak from a upstairs bathroom. The #1 questions that I get asked from those seeking painting advice, is how to block these stains out. In recent years many paint manufacturers have released Latex- water based stain blockers and primers. And many of them have ( Big Promises) on the labels to tackle tough stains with ease. The truth i have found out about these water based primers/ stain blockers is that while many of them are excellent primers that promote great adhesion for top coats, their stain blocking capabilities are very limited. Especially Especially against Large Water based stains. So my advice for those who seek it on stain blocking is and until someone shows me proof of something better, to reach for good ol’ Oil Based Kilz. When I need to block stain