How to waterproof acrylic paint?

Randy Charles
Professional Painter

Randy Charles is the owner of, a website dedicated to providing information, tips, tricks, and news about all things paint. With over 10 years...Read more

Acrylic paint – can it take on the tough outdoors? Yes, it can! Its water-resistant character makes it ideal for outdoor use.

Can Acrylic Paint Be Used Outdoors?

However, to prevent fading and peeling, you must take some precautions due to the sun and weather. UV-resistant spray varnish or adding acrylic medium to the paint will help safeguard it. Before painting outdoors, clean and sand the surface and prime it. Then, when your painting is finished, seal it with a coat of sealer or varnish suitable for the outdoors.

Use Of Acrylic Paint Outdoor
Use of acrylic paint outdoor

Unfortunately, heavy rain and snow can damage the painted surface, even with the best sealing, so if you can, try to bring your art inside during extreme weather events.

Keep your outdoor art safe – seal it with these tips!

How to Seal Acrylic Paint for Outdoor Use?

To seal acrylic paint for outdoor use with waterproofing as the solution, this section explains how to choose the proper sealant for acrylic paint and prepare the surface for sealing. Following these two sub-sections ensures that your acrylic paint creations are protected from the elements and can be enjoyed outside for years.

Choose the Right Sealant for Acrylic Paint

Choosing a sealant for acrylic paint used outdoors is vital. Durability, waterproofing, and UV protection are factors to consider. Here’s what you need to know:

Sealant Type Pros Cons
Polyurethane Durable, glossy finish, suitable for high-traffic areas It can yellow over time and takes longer to dry than other options
Silicone Sealant Highly flexible, perfect for use on uneven surfaces such as concrete and stone It must be applied in thin layers and requires many coats for proper coverage.
Epoxy Resin Durable with excellent waterproofing properties. Ideal for surfaces exposed to harsh weather conditions. The surface needs proper preparation before application.

Pick a sealant that won’t fade in sunlight to ensure your acrylic paint looks excellent outdoors. Check product labels carefully.

I learned that acrylic paint needs a sealer to last outdoors. It’s like putting sunscreen on a toddler at the beach – necessary and tedious.

Prepare the Surface for Sealing

For a perfect seal, proper preparation is necessary. Before starting to seal acrylic paint for outdoor use, prepare the surface. This will give you a flawless finish and make the painting more durable. Here’s a 6-step guide to doing the prep work:

  1. First, remove dirt, dust, and other stuff with a dry cloth.
  2. Wash the surface with soap and water. Use a soft-bristled brush to clean grease and oil stains. Rinse and let dry.
  3. Patch cracks, holes, and uneven areas with an appropriate filler. Use sandpaper to level out any protrusions.
  4. Sand the surface lightly with a fine-grit sandpaper. This creates micro-abrasions on the paint layer, enhancing adhesion.
  5. Thoroughly clean the sanded surface with a non-linting cloth or paper towel to remove dust.
  6. Apply primer over the complete painting area before using a sealant. Primer strengthens the bond between paint and glue.

Remember, before sealing surfaces like clay pots, metals, or house sidings, make sure the base coat is dried off.

Related Read: Can You Use Acrylic Paint on Phone Case?

Wait 24 hours after painting for the best results to start the sealant process. Protect your acrylic painting with waterproofing to prevent it from becoming a watercolor.

Waterproof Acrylic Paint

Waterproof Acrylic Painr
Waterproof acrylic paint

To waterproof your acrylic paint and ensure lasting protection against outdoor elements, use a two-fold approach with our section, Waterproofing Acrylic Paint, with Mixing Acrylic Paint with Waterproofing Agent and Applying a Waterproofing Coating to Acrylic Paint. Mixing in a waterproofing agent with your acrylic paint can improve its water-repellent properties. However, we recommend applying a waterproofing coating over your acrylic paint for added protection.

Mix the Acrylic Paint with Waterproof Agent

Adding waterproofing agents to acrylic paint is essential for long-lasting protection from moisture damage. Here’s a handy guide on how to mix the two:

  1. Choose a suitable waterproofing agent, like silicone or wax.
  2. Put the desired amount of acrylic paint in a container.
  3. Mix in a small amount of waterproofing agent.
  4. Keep adding until you get the desired consistency and water resistance.

Be careful not to add too much – it could lead to color distortion or cracking. Once the paint is dry, add a clear varnish or sealant layer for extra protection. Studies have found that silicone-based coating can increase the lifespan of painted artwork by preventing water damage. Waterproof your acrylics so your masterpiece doesn’t turn into a puddle!

Apply a Waterproof Coat to Acrylic Paint

Acrylic paint is a popular medium for art forms. But it needs waterproofing to stay intact. Water damage, color fading, and peeling can be prevented by waterproofing acrylic paint. Here’s how:

  1. Choose a waterproof sealer designed for acrylic paint.
  2. Ensure the painted surface is clean and dry.
  3. Apply an even coat of sealer with a brush or roller. Please wait for it to dry between coats.
  4. Apply at least two coats of sealer. Let it dry completely after each coat.

Different surfaces need different waterproof coatings. Ask an expert when unsure. Test the sealer on a small area before applying it to the artwork. Ensure good ventilation during the application, as some sealers emit fumes.

Did you know that beeswax can also seal and protect acrylic paint? Waterproofing acrylic paint is like giving it a raincoat. But, an umbrella is needed for longevity.

Tips to Maintain the Longevity of Waterproofed Acrylic Paint.

Here are some ideas to make acrylic paint waterproof for a long time. They can help keep the painted surface solid and long-lasting. Here’s a 3-step guide:

  1. Apply multiple coats. This boosts the paint’s waterproof qualities.
  2. Add varnish or sealant. This creates a barrier that stops moisture from getting in.
  3. Store in a dry place. This prevents water from damaging the surface.

Plus, there are other ways to increase the paint’s lifespan. I use high-grade paints and primers, avoid harsh chemicals when cleaning, and apply the color correctly on clean surfaces.

The Spruce Crafts article states that the waterproofing method depends on the surface type, whether indoor or outdoor. If you follow these tips, it’ll help keep your acrylic paint waterproofed and in excellent condition.

Frequently Asked Questions

Can acrylic paint be used outdoors?

Yes, acrylic paint can be used outdoors if properly sealed and waterproofed to withstand the elements.

How do I seal acrylic paint for outdoor use?

You can seal acrylic paint for outdoor use by applying a clear, waterproof sealant over the painted surface. Make sure to choose a bond specifically designed for use with acrylic paint.

What type of sealant should I use to waterproof acrylic paint?

You can use several types of sealants to waterproof acrylic paint, including polyurethane, varnish, and lacquer. Choose a bond based on the desired finish and level of protection needed.

Can I waterproof acrylic paint with a mod podge?

While mod podge can be used as a sealant for acrylic paint, it is not recommended for outdoor use as it may not provide enough waterproof protection.

Do I need to apply multiple coats of sealant to waterproof acrylic paint?

Applying at least two coats of sealant to waterproof acrylic paint is recommended. Wait for each coat to dry completely before applying the next layer.

How often do I need to reseal acrylic paint for outdoor use?

The frequency of resealing acrylic paint for outdoor use depends on the amount of exposure to the elements and wear and tear. It is recommended to inspect the painted surface regularly and reseal it as needed to maintain adequate waterproofing.

Randy CharlesProfessional Painter

Randy Charles is the owner of, a website dedicated to providing information, tips, tricks, and news about all things paint. With over 10 years of experience in the painting industry, Randy has become an expert in the field and is passionate about helping others learn more about painting. He has written numerous articles on the subject and is committed to providing accurate and up-to-date information to his readers.

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