Kilz cannot be used to treat and kill mold and any paint or priming company that tries to claim that their paint can kill mold is lying.
Even if you try to paint over unkilled mold with ‘mold resistant’ Kilz paint, mold will still continue to grow through it.
Kilz paint can prevent the growth of mold or mildew on fresh and clean surfaces but it cannot be used as a solution to kill mold.
In order to eradicate mold from your home, you’ll need to either contact professionals to come to help you get rid of it or try to tackle the problem yourself.
If the mold issue is extensive and beyond your capabilities, then it’s best to hire out a professional who will be able to solve the problem effectively.
Before you try tackling any at-home solutions, make sure you have respiratory equipment and goggles if the molded area is extensive. Anything that you dispose of that has mold on it should be double-bagged and disposed of properly.
Some at-home mold solutions you can try are very effective in reducing or eliminating the appearance and growth of mold in your home.
Try mixing 1 part bleach with 10 parts water in a spray bottle and spray it all over the surfaces affected by mold and leave it for 4 hours.
On the other hand, you could use this solution and apply it with a sponge or cloth with gloves on. You may want to leave all windows open or a fan in the room whilst you wait for everything to try as the fumes of the bleach are strong and can irritate your lungs.
Can you paint Kilz over mold?
It is not recommended to paint over Kilz with mold, especially if it has not been dealt with before painting.
If your mold is due to a leaking roof or damp growing in a room, then you’ll need to address this issue by either removing the wall or surface with the mold on or using a homemade solution to completely kill the mold.
Once your walls have been cleaned and the mold has gone, you can then paint over the surface with Kilz and it will work to prevent any mold or mildew from growing again.
What happens if you paint over mold?
If you do end up painting over the untreated mold, then it will only return and your paint or wallpaper on your wall will start bubbling, cracking, or chipping again.
So, it is more cost-effective to just receive mold remediation for your home instead of just painting over it with mold or mildew-resistant paint primer.
Which Kilz is best for mold?
The Kilz Mold & Mildew Resistant Interior and Exterior primer is one of the most popular amongst consumers due to its versatility.
It should not be used as a treatment to kill mold but can be used to paint over mold that has been treated or on clean surfaces to prevent mold. It is a powerful stain-blocking formula that will help cover even the most unsightly aftermaths of mold growth in your home.
This primer will also help any additional paint that you want to apply to your walls to adhere better, so you’ll achieve a smooth and even finish. It’s very fast drying, which is exactly what you want after the pain and time spent trying to treat the growing mold in your home.
It also has low VOC emissions, so there won’t be any disgusting smells when you’re painting and it won’t negatively affect your health. The product is not recommended for use on floors and is primarily used for kitchen and bathrooms, but it can be used on drywall and masonry.
Kilz does do specialized paint primers that are formulated for particular surfaces like masonry or concrete, ideal if you’re looking to paint a basement to protect it against mold.
Which is better, Kilz or Zinsser?
Zinsser offers more consistent quality across its range of mold and mildew-resistant paint primers than KILZ. There are some excellent products from the KILZ ranges of paint primers, but when compared side by side with Zinsser products, they are not as effective.
The Zinsser Bullseye 1-2-3 paint primer offers excellent coverage and doesn’t allow colors of mold underneath the paint to bleed through. It can also be used on a wide variety of surfaces including wood, drywall, and even masonry and dries within 30 minutes of applying it.