Applying borax to mold creates an environment that is not suitable to additional mold growth. In many cases borax kills mold spores by turning up the pH levels and making their environmental inhospitable. Borax won’t always kill mold but in many cases it will.

What kills black mold instantly?

For a natural solution for getting rid of black mold, combine one part baking soda with five parts distilled white vinegar and five parts water in a spray bottle. Alternatively, you can use a chemical-based mold and mildew remover, all-purpose cleaners, bleach or dish soap.

What kills mold permanently?

A bleach solution also works to kill mold. Mix one cup of bleach in a gallon of water, apply to the surface and don’t rinse. Mix a 50/50 solution of ammonia and water. Spray on the surface, wait two to three hours, then rinse.