Though the name itself is misleading, KILZ paint and primers do not actually ‘kill’ mold. But it will prevent mold. The brand does well to kill a stain’s ability to show through the final coat of paint by sealing over the stained surface with an impermeable interior barrier.

Can you spray kilz over mold?

While that all sounds great, there’s no such thing as primer or paint that can roll over mold and destroy it. … KILZ, and similar products, would be a great thing to have before the mold even started. If you had them, you may have prevented the current mold problem. That said, you can’t paint over the mold.

What is the best mold killer?

• Best Overall: RMR Brands RMR-141 Disinfectant and Cleaner. …
• Best Preventative: Mold Armor Rapid Clean Remediation. …
• Best Natural: Benefect Botanical Decon 30 Disinfectant Cleaner. …
• Best for Wood: Wet and Forget Moss, Mold, Mildew, and Algae Stain Remover. …
• Best for Fabrics: Concrobium Mold Control Aerosol.