Why is Kilz Not Recommended for Flooring

KILZ RESTORATION (Formerly KILZ) is a next-generation water-based primer, sealer, and stain blocker that performs similarly to classic oil and shellac-based primers. If you search for anything that will take on the toughest stains like rust or significant water damage, it’s the one.

Is it, however, acceptable for the floor? People often wonder, Why is Kilz Not Recommended For Flooring?

There is confusion and questions over the topic. Kilz is colored shellac and ideally not suitable for concrete sealing. It works better for removing stains from walls and wood. Although an oil-based Kilz may probably shut the smells, colored shellac will seal them.

Let’s dig deeper here.

Why is Kilz Not Recommended for Flooring

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Why is Kilz Not Recommended For Flooring

Although Kilz is a powerful anti-staining formula, they are not recommended for flooring.

Let’s give a quick check on the core reasons for not using Kilz for flooring:


All primers have some smell. Kilz is nothing different and holds one kind of unbearable strong smell. It becomes difficult to stay around Kilz for a longer time. Such odors are never expected to be in your house. That’s why you should not use Kilz on the floor. Thus, the best alternative is to use a water-based version that doesn’t have much unpleasant odor.

Cohesion and performance

Kilz does not have better coverage. Also, it allows for a bit of bleeding, based on the surface. Better, you may need to apply a thicker coat for better coverage. That’s why it’s much more expensive for flooring. In addition, the cover hides stains well and makes sure that the color you apply to their surface looks excellent and uniform. It has been a bit pricey too.


Kilz requires more money to apply. You will have to clean the surface first, so be prepared for this lengthy process. This feature doesn’t suit a floor.

Who Should Use Kilz Primer and Why?

Kilz is a heavily loaded primer that usually people use to cover and seal previously damaged areas. Besides, Kilz can also be used to trap and seal smells, prevent stains, and even fill up holes in porous surfaces. This component creates a smooth base for the new paint to adhere to and appear at its finest.

Indeed, Kilz’s fast-drying primer and sealer reduces the impact of surface variations like texture, blocking, and sealing smells and stains. Once you use it, you’re going to get a smooth surface. Kilz primer prepares the softest, most satiny finish possible.

Furthermore, priming with Kilz has six primary advantages:

  • Porous surfaces
  • Blocks stains
  • Blocks and seals out smells
  • Hides previous colors
  • Promotes adhesion
  • Provides a mildew-resistant finish.

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Frequently Asked Questions

Will Kilz remove cat urine odor?

Kilz primer, while being among the most affordable primers, performs an excellent job at removing odors. Although the primer does not adhere to the wall very well, it does an excellent job of masking the smell of urine. It also provides enough coverage. It performs a fantastic job at blocking odors for such a low price. Even though it is sealed in the cat’s urine, Kilz may leave a lingering smell for a few weeks after application.

Which is better, Kilz or Zinsser?

Original Kilz Primer allowed greater bleed-through when applied in two coats to two separate walls in the same area, whereas Zinsser offered superior coverage. For the most part, Kilz Premium has a whiter, thicker consistency that provides excellent opacity. According to reviews, the original oil-based primer has a horrible smell. If you decide to use Kilz Primer, go for the newer water-based variant or try Kilz Max.

Can I use Kilz on the subfloor?

You may paint your subfloor as long as it is sturdy. It quickly absorbed into the wood, assisting in the preparation of the surface for painting. I painted the room’s border with a brush and the remainder of the floor with a roller. I had the first coat on in 30 minutes and the second coat on in under 2 hours.

Is Kilz bad to breathe?

A primer comprises 20–30 percent synthetic resin, 60–80% solvent, and 2–5% additional agent. Higher-quality water-based primers, like Kilz, employ 100-percent acrylic resins. These are more expensive than lower-quality formulations. If you inhale Kilz, it is hazardous. Vapor inhalation can induce sleepiness and dizziness.  lengthy periods or in excess might irritate the respiratory system.

How long does it take for a Kilz smell to go away?

Kilz has a foul odor. I discovered that painting over it rapidly removes the problem. Generally, you might have to wait two to three days for the paint smells to dissipate and the fumes to leave the surroundings. You should avoid this location during this period to avoid any negative health consequences.

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