We recommend straining the paint into a 5 gallon bucket, just so it has a large stable base preventing it from being knocked over. After you’ve mixed the paint, you need to strain it using a paint strainer to ensure any remaining small lumps are removed. If you don’t, it could come out blotchy or even fail to dry. As with all paints, you need to mix it really well to ensure you get a satisfactory finish. Prepare Your Paintīefore you start painting with an airless paint sprayer, you need to properly prepare your paint. Airless paint sprayers make spraying large surfaces a breeze – but just how do you use one? In this in-depth guide, we take a look at the basic steps to get you up and running.