How Long After Kilz Can I Paint (And Why)?

How Long After Kilz Can I Paint (And Why)?

Exact Answer: At Least Three Hours

Kilz falls under the category of a primer which is also popularly known as an undercoat. It is used to provide coating, which is put on different types of materials before painting them. It is primarily done to ensure better adhesion of the paint on the surface of the material. It gives durability to the paint, and the paint doesn’t come off easily from the surface.

Primers are primarily water-based, and they also contain some other contents. Synthetic resin is one of the essential constituents of a primer, and it comprises twenty to thirty percent of the primer. More than sixty percent of primer is composed of the solvent itself, and additive agents use the remaining. Some primers are also found to contain polyethylene as it increases the durability of the primer.

How Long After Kilz Can I Paint

How Long After Kilz Can I Paint?

Primers such as Kilz have been in use for very long, and they are trendy in most parts of the world. Different countries use different types of primer. The main reason behind the choices of different primers is the conditions of a particular place. If the conditions of a place where the primer is to be used remain cold most of the time, then regular primer will work. In contrast, if a building is situated where the conditions are humid, it is advised to use more primer than usual. In rainy places, primer containing polyethylene is primarily used so that the paint doesn’t get washed off because of rain.

It has been observed that if primers are not used for painting, then the paint doesn’t stay for a long time as the material does not hold it. The primer helps to keep the paint and the material surface bonded as the contents used in making primer are sticky to both the paint and the material surface.

Condition Of PrimerTime Taken To Dry
Partially driedOne hour
Completely driedThree to four hours

After applying the primer, it is advised to wait for a few hours. It takes one hour for the primer to get partially dried. In contrast, the primer gets completely dried after three to four hours, and then the surface is suitable for painting.

Why Does It Take That Long After Kilz To Paint?

Primer can be used with the surface of any material. It is durable with a concrete surface as well as a wood surface also. It is also applied on plastic surfaces before painting them. If the material’s surface is not water-resistant, then it is compulsory to use water because, in such cases, the paint will come off if the material interacts with water. Primer also ensures that no moisture is reached to the material’s surface, as in some cases like iron boards, it can lead to rusting. There are many other benefits of using a primer before painting.

It is always advised to check the quality of the primer before using it. Low-cost primers are not suitable and are not able to hold the paint for a long time. In contrast, high-cost primers easily hold the paint for many years. Primers should also be kept away from eyes as contact with the eye can be irritating. The primer should not be consumed orally by any means because the primer contents are highly toxic and can disrupt the neurological working of the body.


It takes that long after Kilz to paint because all primers like Kilz don’t dry fast. They need time to dry up as the longer they get dried, the longer they can hold the paint. If the paint is applied before proper drying of the primer, it won’t remain on the surface for too long and come off in one or two years.


Finally, it can be concluded that Primer is a combination of solvents and synthetic resins and a few additive agents. Polyethylene is also sometimes used to make the primer more durable. The primary purpose of using a primer is to allow the paint to stay at the surface for longer durations.

On average, it is advised that the paint should be applied after a minimum of three hours of using primer. If the paint is applied before this time, it won’t hold the paint for a long time. Different types of primers are used in different places based on the environmental conditions of the place.


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Hi! I'm Nidhi.

Here at the EHL, it's all about delicious, easy recipes for casual entertaining. So come and join me at the beach, relax and enjoy the food.


  1. I disagree with the part about low-cost primers, they can be just as good as high-cost ones if used properly

  2. The details provided here are incredibly useful, now I’ll be more mindful of the type of primer I use

  3. The focus on the drying times of primers is quite interesting, but I expected more on the scientific aspects

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