Polycrylic typically refers to a water-based version of polyurethane. It is applied with a brush or is sprayed on, and has many of the same properties as oil-based polyurethane. Many find it easier to use than traditional polyurethane. Is chalk paint the best choice for your project?Click to see full answer. Similarly, you may ask, do you need to seal chalk paint?It is not advisable. Chalk Paint® decorative paint, even when sealed with a quality sealer such as Annie Sloan Soft Wax or Annie Sloan Lacquer, will not be 100% non-porous and this can present problems with cross contamination. The surface may look clean but it may not be deep down into the finish.Similarly, can you put Polycrylic over chalk paint? Not to be confused with oil-based polyurethane, Polycrylic is a water-based protective finish that will not yellow. Polycrylic can also be applied as a finish coat over stain, too, which makes it nice for two-tone (like my media stand dresser) or tri-color pieces (like my tri-color dresser). Also question is, what is the best top coat for chalk paint? However, General Finish’s Flat Out Flat Top Coat was picked as the best chalk paint top coat because it preserves the look, feel and color while increasing the durability of milk paint and chalk paint even with one coat. It dries quickly and can be easily cleaned up with soap and water.What happens if you dont wax chalk paint?There is a potential downside to a poly finish that isn’t an issue with wax. Poly topcoats can sometimes pull tannins from the wood through the porous chalk paint, creating yellowish (or sometimes pink) spots. Wax doesn’t react with the wood the same way a poly does, which is why this doesn’t happen with wax.