When you want to protect your acrylic paint creations, you’ll need to apply a suitable sealant. Common choices include acrylic sealers, varnishes, and polyurethane, each offering different levels of durability and finish. The best option depends on the project’s intended use and desired aesthetic.

Sealing Your Acrylic Masterpieces: What to Put on Top

Protecting your acrylic paint artwork is crucial for its longevity. Whether you’ve painted a canvas, a piece of furniture, or a decorative object, a good sealant will shield your work from dust, UV rays, and general wear and tear. But what exactly do you put on top of acrylic paint to seal it effectively? Let’s explore your options.

Why Seal Acrylic Paint?

Acrylic paints, while durable once dry, can still be susceptible to damage. Sealing your work provides a protective barrier. This barrier prevents fading from sunlight, protects against scratches and scuffs, and makes the surface easier to clean. For functional art, like painted furniture or outdoor decor, sealing is absolutely essential.

Top Sealant Options for Acrylic Paint

Choosing the right sealer ensures your artwork remains vibrant and intact for years to come. Here are some of the most popular and effective choices:

Acrylic Sealers and Sprays

Acrylic sealers are specifically designed to work with acrylic paints. They come in various finishes, such as matte, satin, and gloss, allowing you to control the final look of your piece.

• Pros: Easy to apply, readily available, good for most surfaces, often water-based and low in VOCs.
• Cons: May not offer the highest level of durability for heavily used items.
• Best for: Canvases, paper crafts, general decorative items.

Varnishes (Acrylic and Oil-Based)

Varnishes offer a more robust protective layer. Acrylic varnishes are flexible and non-yellowing, making them a popular choice. Oil-based varnishes can offer superior durability but may yellow over time.

• Pros: Excellent protection against abrasion and UV light, available in various sheens.
• Cons: Can be more expensive, some types may yellow with age.
• Best for: Fine art canvases, painted wood, and other surfaces needing strong protection.

Polyurethane (Water-Based and Oil-Based)

Polyurethane is a very durable option, often used for floors and furniture. It provides a tough, waterproof finish. Water-based polyurethane is less likely to yellow than oil-based, though oil-based can offer a harder finish.

• Pros: Extremely durable, excellent resistance to water and wear.
• Cons: Can be thick and may alter the appearance of delicate artwork, requires good ventilation.
• Best for: Furniture, outdoor projects, high-traffic items.

Mod Podge

Mod Podge is a versatile craft medium that acts as a glue, sealer, and finish. It’s a great all-in-one solution for many craft projects.

• Pros: Easy to use, multi-functional, affordable, comes in many finishes.
• Cons: Not as durable as dedicated varnishes or polyurethanes for heavy-duty applications.
• Best for: Decoupage, paper crafts, sealing painted jars or boxes.

Factors to Consider When Choosing a Sealer

Selecting the perfect sealant involves thinking about your project’s specific needs. Consider these points:

• Surface Type: Is it canvas, wood, metal, fabric, or paper? Some sealers adhere better to certain materials.
• Intended Use: Will the item be indoors or outdoors? Will it be handled frequently? This dictates the level of durability needed.
• Desired Finish: Do you want a matte, satin, or glossy look? The sealer will significantly impact the final appearance.
• UV Protection: If the artwork will be exposed to sunlight, choose a sealer with UV inhibitors to prevent fading.
• Application Method: Sprays are easy for large, flat surfaces. Brushes are good for detailed work or smaller items.

How to Apply Sealant to Acrylic Paint

Proper application is key to achieving a smooth, even, and protective finish. Always follow the manufacturer’s instructions for the specific product you choose.

1. Ensure Paint is Fully Dry: Acrylic paint typically needs at least 24-72 hours to cure completely before sealing. Rushing this step can lead to a cloudy or uneven finish.
2. Prepare Your Workspace: Work in a well-ventilated area. Protect your work surface with newspaper or a drop cloth.
3. Test on a Small Area: If possible, test your chosen sealant on a scrap piece of painted material or an inconspicuous area of your project. This helps you see how it affects the color and finish.
4. Apply Thin Coats: Whether spraying or brushing, apply thin, even coats. Multiple thin coats are better than one thick coat, which can drip or pool.
5. Allow Drying Time Between Coats: Let each coat dry thoroughly according to the product’s instructions before applying the next.
6. Avoid Over-Brushing or Over-Spraying: This can lead to streaks or an uneven texture.

Sealing Different Acrylic Projects

The best sealant for acrylic paint can vary depending on what you’ve painted.

Sealing Acrylic Paintings on Canvas

For traditional canvas paintings, an acrylic spray varnish or a liquid acrylic varnish is usually the best choice. These are designed to be non-yellowing and flexible, preserving the integrity of the paint layers. A satin varnish is popular as it reduces glare while still providing a subtle sheen.

Sealing Painted Furniture with Acrylics

If you’ve used acrylics on furniture, you need a highly durable sealant. Water-based polyurethane is an excellent option. It offers robust protection against scratches, spills, and wear. Ensure you apply several thin coats for maximum protection.

Sealing Acrylic Crafts and Small Objects

For smaller craft projects, such as painted jars, boxes, or decorative items, Mod Podge or an acrylic sealer spray works well. These are easy to apply and provide adequate protection for items that aren’t subjected to heavy use.

Common Mistakes to Avoid

• Applying Sealant to Wet Paint: This is the most common mistake and can ruin your finish.
• Using the Wrong Type of Sealer: An oil-based sealer on a water-sensitive surface might cause issues.
• Applying Sealant in Humid Conditions: Moisture can affect the drying process and the final look.
• Applying Too Thickly: This can lead to drips, unevenness, and a cloudy appearance.

People Also Ask

### Can I use hairspray to seal acrylic paint?

While hairspray can offer a very temporary, light seal for some crafts, it is