Choosing the Right Sealer for Acrylic Paintings: Why Elmer's Glue Isn't the Best Option

Acrylic paintings are a popular medium for artists, offering versatility and vibrant colors. However, when it comes to protecting these artworks, some common misconceptions exist. One such misconception is that Elmer's glue can be used to seal or varnish acrylic paintings. This article will explore the reasons why Elmer's glue is not suitable for this purpose and suggest better alternatives.

Understanding the Need for Sealing Acrylic Paintings

When acrylics dry, they form a plastic film that adheres to the substrate and does not require additional protection. In fact, exposing the painting to unnecessary materials like Elmer's glue can ruin its quality and durability. Not only is Elmer's glue water-soluble and prone to peeling, but it also does not enhance the appearance of the painting. For a more professional look, waterproof and UV-proof sealers are available on the market.

Why Elmer's Glue is Not Suitable for Acrylic Paintings

Elmer's glue, a versatile adhesive, is not designed for use as a sealant or varnish for artwork. Here are several reasons why it is not the best choice:

1. Finish

Elmer's glue dries to a matte finish, which might not provide the desired glossy or satin finish that many artists prefer for their acrylic paintings. A good finish is crucial for the overall aesthetic appeal of the artwork.

2. Durability

Elmer's glue is water-soluble and may not provide a strong protective layer once dried. This can make your painting vulnerable to moisture and damage, compromising its long-term durability.

3. Yellowing

Over time, PVA glues like Elmer's can yellow, negatively impacting the appearance of the painting. For long-lasting protection, it's important to use sealers that do not cause discoloration.

4. Compatibility

Elmer's glue may not adhere well to the acrylic paint, potentially leading to peeling or flaking over time. This can ruin the integrity of your painting and negatively affect its appearance.

Recommended Alternatives for Sealing and Varnishing Acrylic Paintings

For a professional and durable finish, consider the following alternatives:

1. Acrylic Varnish

Acrylic varnishes are specifically designed for acrylic paintings. They are available in various finishes, including gloss, satin, and matte. These varnishes provide a protective layer without altering the color or texture of the painting.

2. Spray Varnish

Spray varnishes offer an even coat and are easy to apply. They are particularly useful for large paintings, as they ensure a consistent finish. When using spray varnish, ensure it is compatible with acrylics and follow the manufacturer's instructions carefully.

3. Polyurethane

Some artists use water-based polyurethane for added durability. This option is particularly useful for outdoor artwork or works that may be exposed to harsh conditions. However, it's important to test the polyurethane on a small area first to ensure it does not affect the painting.

When sealing or varnishing acrylic paintings, always ensure the painting is completely dry. Using the wrong sealer can compromise the quality and longevity of your artwork, so it's crucial to choose the right product for the job.

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