The key advantage of acrylic paint is its fast drying time. It takes 20- 30 minutes to dry when applied in thin layer. The thicker layer can took hours to dry, depending on the setting. Professional acrylic colors are apparent on the spectrum for a little longer than many other acrylics.
Artists usually takes about 30 minutes to prepare everything to start painting. Because it dries fast, you can quickly finish any acrylic art project. If you’re worried about making mistakes due to its fast drying time, you’ve got you. You can check How To Fix Mistakes of Painting: Acrylic Or Oil Painting out if you want to fix mistakes that you can make.
How Long I Should Wait Before Adding Another Layer on Canvas?
It’s a good idea to wait until a coat has fully dried before painting over it so that the paint underneath isn’t removed. It encourages you to create as many glazes or paint up to other colors as you want. Most acrylic artists tend to work in this manner, allowing each sheet to dry before adding another coat. Since acrylics dry quickly, this is a relatively simple technique.
The amount of time you wait between layers or colors on your canvas depends on the style you work in or attempt to accomplish with your art. You may use acrylic to apply wet paint to dry paint or to add drying paint to wet paint. Since the colors will be very descriptive, it will be up to you to decide how you want the painting to sound.
Many acrylic artists like to work wet-on-wet because it allows them to achieve a variety of results. For starters, it’s easier to mix colors when they’re muddy. You can create a marbling effect with acrylics by working wet-in-wet. In most cases, you’ll want acrylics to dry entirely before adding another coat. This is dependent on how thinly or thickly you applied the paint, as well as whether or not you used gels or mediums. Environmental conditions such as temperature and humidity can also affect the drying period. When the paint is soft to the touch, a second coat on top can usually be added correctly.

How Long I Should Wait For Acrylic Paint to Dry Before Varnishing?
Allow at least one week for acrylics to dry before varnishing, even if they dry quickly on the floor. Sometimes you will see the painting is perfectly dry to the touch in a few hours. Even if an acrylic painting is looking dry, it can be somewhat damp beneath the surface. The varnish may become opaque if you apply the varnish too soon after the acrylic paint has dried. It will happen because of the accumulated water still there in the painting. Wait at least a week to ensure that the acrylic paint is completely dry. These durations are just intended to be used as a guide. Some acrylic artists may wait up to six weeks to let the painting completely. The precise time it takes for your acrylic painting to dry will be determined by a variety of circumstances.
How Painting Technique Affects Drying Time
It takes longer for the paint to dry when used in a thick impasto style rather than thin layers. Similarly, adding gels or media to acrylic paint will affect the drying time, either speeding up or slowing it down.
Are you creating a background? How to paint a perfect background: Few Techniques to Learn can help you with that.
Other Factors
Temperature and moisture—both the painted area and the drying area’s temperature and moisture will influence the paint drying time. It is possible to color and store your paintings in an atmosphere with a steady room temperature and low humidity.
The amount of ventilation-air flow or lack thereof will affect the paint’s drying time. A normal flow of air helps to dry faster. Humid air slows down the drying time. This can also cause a milky film to form on the painting.