Spray Painting

How Long Does Spray Paint Take to Dry?

You are doing a project that involves spray painting and you are wondering how long would you have to wait for the paint to dry, you came to the right place. In this article, we shall provide useful and detailed information which will definitely help you to know when you could continue your project without any worries of damaging your spray painted project. 

Most of the time, spray paint products usually come with an instruction and information of roughly how long it would take for the spray paint to dry. This information could help you make an estimation as when you could go back to start working on your project again. However, the problem is that there are some spray paint products that do not have this kind of information. 

The Effects of Temperature

There are several factors that could affect as to the duration of how long your spray paint would dry up. 

Most paints usually have the optimal temperature between 65 to 85 degrees Fahrenheit. Meaning, if it is hotter than the mentioned temperature, this could have a negative effect on the drying time. Keep in mind and take note that the hotter temperature the more it is not best for drying paint. 

On the other hand, colder temperature is not necessarily worse. This means you would not want your paint to be cold as well as it could freeze your wet paint. Though this could be very unlikely, take this factor into consideration especially when you are in a colder climate or you are in the middle of winter. 


The type of material that you are painting on also has an effect on the drying time of your spray paint. 

If you spray paint on metal, you would notice that your spray paint would dry quickly. The reason behind this is because metal is not very porous. Moreover, your spray paint would dry faster in warmer temperature which is quite unusual. However, you could be assured that you could expect your spray paint to be dry in about 10 minutes. 

If you are using cardboard material on the other hand, this material is very porous which means your spray paint could take about 15 minutes to dry. Keep in mind that ventilation is very essential. Hence, we recommend that you do your painting outside or use some fans.

If you are using glass, we suggest that you paint very lightly. You might want to wait about 15 minutes in between coats and you might have to wait for over 24 hours for the paint to completely dry. 

Rubber on the other hand is considered as extremely porous. This could take at least 24 hours for the spray paint to dry. Hence, you will have to plan your time especially when you do multiple coats. 

Other Factors to Consider

There are several other factors you should also consider such as wind speed and humidity whenever you are try to define the duration of your spray paint to dry. Keep in mind that if the wind is powerful, the paint would dry faster. However, it could also spread it around which you will have to consider doing your project another day. 

Humidity on the other hand could have a small effect. If you are in an area that has very high humidity, the paint could take a longer time to dry. The reason behind this is due to the moisture in the air. Hence, if the humidity is high the more moisture the more your paint will be moist. This means if the humidity is low, the paint could dry quicker. 

Lastly, you will also have to consider how thick the paint layer you are painting. Applying thicker would make the paint dry longer. This is the reason why we recommend that you apply spray paint in light layers. This way it would also prevent the paint from running. 

Does Paint Have to Be Completely Dry Before Adding Another Coat?

The answer to that question would be no especially when you are applying another coat. Instead, you could apply the next coat when the paint is semi-dry which is about 5 minutes. This way, you could cut down the overall waiting time. 

How Can You Make Spray Paint Dry Faster?

Ventilation is one of the factors that could ensure that your spray paint dries quickly. Hence, we highly recommend that you do your project in the presence of fans or in a safe place outside on a windy day. 

Apply a thin coat of paint. This way it would dry faster. Also keep in mind that when the humidity is high, you might want to consider continuing your project to another day. 


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