Why It Need To Seal Acrylic Painting

How To Seal An Acrylic Painting In 4 Excellent Ways

In this article we are going to discuss about the topic how to seal an acrylic painting. What is acrylic paint? Why acrylic painting needs to seal? What are the instructions to follow to seal the acrylic painting? What are the precautions to seal the acrylic painting? What are the conditions required to seal an acrylic painting? What is the durability of the acrylic painting?

If you want paint a wall or any surface you may have an idea on what type of the painting to be used for it? It is the general thinking, mostly the people select the best type of paint to paint any surface where they want to paint.

So among those paints acrylic paint is the one type. For the acrylic paint users after the finishing of the painting with acrylic paint, They need to sustain it for long time. According to that reason they want to seal the paint for longevity.

How To Seal An Acrylic Painting

Let’s get an idea on the topic how to seal an acrylic painting in the form of a video for an overall idea.

What Is Acrylic Painting?

In this article how to seal acrylic painting let’s know about the acrylic paint. Acrylic paint is a fast drying paint made of pigment suspended in acrylic polymer emulsion and silicone oils, stabilizers, or metal soaps. Most acrylic paints are water-based, but become water resistant when dry.

Besides canvas, paper, and card, you can use acrylics to paint on glass and plastic, metal and stone, fabric, and leather. Since acrylic paint is water soluble, you can wash your brushes and palette, as well as your hands, with soap and water.

What Is Acrylic Painting

In outdoor acrylic paint what is the use. This weather resistant acrylic paint is specially formulated to resist water and adhere to surfaces, even in changing temperatures. No sealing or varnishing required.

It’s perfect for outdoor decorating on wood, terra cotta, concrete, masonry, stone, ceramic bisque, cast aluminum and e.t.c. It makes the acrylic paint sealing on sustainable paint for long time.

Why It Need To Seal  An Acrylic Painting

To sustain the painting for long time it should be sealed. To seal the painting it requires the best sealers on acrylic painting. The best sealant for an acrylic painting is varnish.

Why It Need To Seal Acrylic Painting

Traditionally, varnish was made from natural materials and acted as a cover on paintings that was meant to be removed.

The varnish began to show signs of aging, it was removed and reapplied, revealing the original, preserved colors beneath.

Which Type Of Glossy Finish An Acrylic Painting

Glossy finish will be the most reflective and provide the deepest color saturation. Glossy finish is also great when priming wood for acrylic painting. The primer will stick better to glossy varnish than any other.

Which Type Of Glossy Finish On Acrylic Painting

The satin and gloss varnishes add that extra wow factor to your painting especially with dark colors.

How To Seal An Acrylic Painting?

To seal acrylic painting it needs five steps. They are.

  1. selection of method
  2. Gather the materials
  3. Application
  4. Dry
  5. Coating

Selection of method to seal an acrylic painting

Brush on the surface for the shine. It is for more control.

Spray on the surface for the shine. It is for good finish.

selection on method

Use brush for sealer application. For example: Liquitex satin varnish.

I don’t want to use that brush for anything else other than the sealer. Apply on the surface.

Gather the materials to seal an acrylic painting

  • The location should be well-ventilated (especially if you use a resin varnish).
  • Temperature should ideally be between 60-90 degrees Fahrenheit (15-32 degrees Celsius).
  • The area should not be very dusty.
  • You should clean the surface of the painting with a soft brush or lint-free cloth before you begin.

Application On An Acrylic Painting

There are different ways you can apply the varnish but I prefer running a straight even coat with the width of the brush. When you are ready, mix your varnish with the recommended ratio of water or mineral spirits for resin varnish.


Apply your varnish following the same instructions for the isolation coat.

Dry to seal an acrylic painting

Allow to dry the acrylic painting for 2 to 4 weeks for an easy transport and the display of the painting.

Dry to seal acrylic painting

While this first coat is drying, cover your shallow dish and brush with plastic wrap or clean and rinse your brush so the varnish doesn’t dry on your brush.


Wait for this coat to dry. If you want you can add a third layer, however, two coats is what I usually stick with.


Frequently Asked Questions On How To Seal An Acrylic Painting

1.Do you need to seal an acrylic painting?

It is essential that you varnish your completed acrylic paintings. The varnish will protect the painting from dust, UV rays and yellowing.

2. What do you put on acrylic paintings to seal them?

Using a varnish or enamel spray is a very common way to seal all kinds of art work.

They can be a very good option if you need your finish to be as affordable as possible, if you do not require an ultra high gloss finish or if you require a quick turn around.

Just remember to read the can thoroughly before use

3. What sealer should I use on acrylic paint?

Acrylic paint can be sealed on outdoor surfaces with polyacrylic or water-based polyurethane. To avoid damaging your paint, make sure you choose a water-based (not solvent-based) polyurethane.

4. How do you seal acrylic paint on canvas?


  1. Make sure your acrylic painting is dry before applying the varnish sealer.
  2. Apply the first coat of varnish with a wide base coat brush. …
  3. Wait for the first coat to dry.
  4. Apply a second coat going the opposite direction of the first coat.
  5. Wait for the second coat to dry.

5. What is an isolation coat for acrylic painting?

An isolation coat is a coat between your finished painting and the varnish. It is transparent and creates a physical separation between the varnish and your painting. This is key because otherwise the varnish will stick to your painting and be a nightmare to try and remove.

Also Read Here Related to the topic how to seal an acrylic painting: 

How to dispose of acrylic paint

Is acrylic paint toxic

Is acrylic paint flammable


In this article how to seal acrylic painting you may enjoy the content. It gets very easy and you will gain more confidence in applying your coats evenly. It doesn’t take much time at all to do this and you have a protected painting.