How To Seal A Diamond Painting: Definitive Guide

How To Seal A Diamond Painting: Definitive Guide
How to seal your diamond painting is an important step to unlocking a crystal-clear finished masterpiece and protecting it from the elements. 

Whether you've just finished a project or you're trying to refurbish one that has been collecting dust, getting the perfect seal is essential.

In this definitive guide, we'll cover various methods to seal a diamond painting so that it lasts for years and looks as good as the day you completed it!

Benefits of Sealing Your Diamond Painting

Here are the benefits of sealing your Diamond painting:

Protection from Dust and Debris

Sealing your diamond paintings helps protect them from dust and debris that can accumulate on the surface of the painting over time. By sealing it, you create a protective barrier that prevents dust and debris from settling on the surface of the painting, keeping it clean and shiny for longer.

Preservation of the Diamonds

Diamonds can come loose from the adhesive surface of the painting due to exposure to air or movement. Sealing your paint with diamonds painting helps preserve the diamonds and prevent them from falling off over time.

Enhancement of the Painting's Appearance

Sealing your finished free diamond painting or perhaps a bird diamond painting kit, can enhance the overall appearance by providing a glossy and professional finish. The sealant adds a layer of shine to the painting, making the diamonds sparkle and giving it a more polished look.

Drawbacks of Sealing Your Diamond Painting

  • Potential for Color Changes: Sealing your diamond painting can cause the colors to change or appear different. Depending on the type of sealant used, it can alter the colors and make them appear darker or lighter. This can be especially noticeable in paintings with lighter shades, which may appear more muted or faded after sealing.

  • Difficulty in Re-Framing: Sealing your diamond painting can make it difficult to re-frame it later. The sealant adds an extra layer of thickness to the painting, making it more challenging to fit it into a new frame or mount it onto a canvas.

Types of Sealers

Here are the types:

Spray sealer

Spray sealers come in aerosol cans and can be easily sprayed over the surface of the painting to create a protective layer.


  • Quick and easy to apply

  • Provides an even and consistent coverage

  • Dries quickly and does not require any additional tools


  • Can be difficult to control the amount of sealer applied

  • Can be messy and can potentially leave an uneven finish

  • May require multiple coats for complete coverage

Brush-on Seale

Brush-on sealers are liquid and applied using a brush or sponge.


  • Can provide a thicker and more durable seal

  • Offers better control over the amount of sealer applied

  • Can be used to touch up specific areas of the painting


  • Can be more time-consuming and require additional diamond painting tools

  • Can leave brush strokes or bubbles if not applied carefully

  • May require more drying time between coats.

How To Seal Your Diamond Painting (5 Easy Steps)

Here are easy steps to seal your Diamond painting:

Step #1. Prepare the Area

Before sealing your diamond painting, clear any furniture or other items from the area and cover it with a drop cloth or newspaper. This will help protect your surfaces from any spills or splashes. You'llYou'll also want to ensure the room is well-ventilated when using aerosol sealants.

Step #2. Roll Your Diamonds

Use a rolling pin or roller or a similar diamond painting tools to gently roll over the painting to ensure your diamonds are properly sealed and secure. This will help press loose diamonds into the adhesive surface, creating a stronger bond.

Step #3. Clean the Painting

Once you have prepared the area, clean your entire painting with a lint-free cloth before sealing it. Ensure all diamonds are securely attached to the canvas, and no dirt or dust particles are on its surface.

Step #4. Apply Sealant

Depending on which sealant you decide to use, you will need to apply it with a brush or an aerosol can. If using a brush-on sealant, spread the liquid evenly over the painting'spainting's surface and avoid leaving any streaks or bubbles. If using an aerosol sealant, spray in short bursts at a distance of 10-12 inches from the painting.

Step #5. Allow Paint To Dry

After applying your chosen sealer, let it sit for at least 24 hours so that it has enough time to dry and cure properly before handling the diamond art.

By following these steps, you can easily seal diamond paintings.

Pro Tips for Sealing Your Diamond Painting

Here are some pro tips:

  • Use a Light Touch: When applying the sealer, use a light touch to avoid damaging the diamonds or causing them to shift. 

  • Spread Even Strokes: Using a brush-on sealant, use a soft-bristled brush and spread the liquid in even strokes.

  • Do not Spray Too Close: When applying an aerosol sealant, avoid spraying too close to the painting or holding the can for too long, as it may cause the colors to become muddy or dull.

  • Test the Sealer: Before applying the sealer to your entire diamond painting, it is essential to test it on a small, inconspicuous painting area. This can help you determine whether the sealer will cause any discoloration or affect the diamonds in any way. 


Working on a customized diamond painting kit can be a satisfying and rewarding experience. And sealing your finished piece can be a great way to ensure that it stays in perfect condition for years to come. You can apply these techniques to custom diamond painting or to any of our other diamond painting kits.

With the right type of sealant and the simple steps outlined above, you can easily protect your diamond painting kits from dust, dirt, and other environmental elements. We hope this article has helped. If you need other tools or accessories, take a look.

Thanks for reading!

Frequently Asked Questions (FAQs)

Q: Can you seal a diamond painting with PVA glue?

Yes, PVA glue can be used to seal diamond painting canvas. It is an effective adhesive and provides good protection from dirt and dust. However, it can take longer to dry than other sealants, so allow ample time for the glue to cure before handling the painting.

Q: How long does a sealed diamond painting last?

A sealed diamond painting should withstand wear and tear for many years, provided it is properly cared for. Sealants can help prolong the life of your diamond painting by protecting it from dirt, dust, and other elements, but eventually, the sealant will start to wear away. That's why it is important to know how to seal your diamond painting.