The last step in the mold remediation process is to coat or encapsulate the contaminated material so that any nook or cranny that might have been missed is thoroughly treated so as to minimize the chances of any recurring mold growth. It's important to choose a coating that not only has a fungicide in it, but is a coating that is EPA-registered as a whole. Our recomenndation is Fiberlock's Aftershock coating that we sell by both the gallon, or 5 gallon bucket. It is a white acrylic sealant can be sprayed, rolled or brushed on. Aftershock whose active ingredient is Chlorothalonil is EPA-registered as a coating to kill residual mold and mildew after pre-cleaning.