We have three major times of drywall compound to choose from lightweight joint compound, quick set joint compound and the all purpose compound. They have.. Let the drywall dry, then brush on a coat of stain blocking oil or water based primer. Cover an area slightly larger than the stain itself..Black Mold, also known as Stachybotrys Chartarum, is a greenish black fungus that grows well in materials with a high cellulose content. In homes, that includes.Shower Mold Removal. Take a good look around high and low and see what you are up against before ripping out any ceiling tiles, drywall or baseboards..
Method . Coated or Painted Drywall. Keep the room well ventilated. Protect the surrounding area. Choose a cleaning agent. Add the cleaning solution to a spray bo.e. Spray a small amount of the solution onto the mold. Scrub the area with an old toothbrush. Dry the area out. Apply a stain blocking paint..