Applying Sealant
Applying a sealant is entirely up to you—it’s not a requirement, and you can frame your piece without sealing it. However, we highly recommend sealing, especially if your artwork won’t be framed behind glass. For items like diamond-painted coasters, placemats, trinket boxes, and similar objects, sealing is essential. It helps keep the diamonds securely in place while they’re being handled, preventing foreign substances like food, drink, or dirt from getting into the small gaps between the diamonds.
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Sealing and finishing are the final steps in the diamond painting process. This involves applying a protective coating to your painting to ensure the diamonds stay intact and don’t fall off. There are two main sealing methods: liquid sealant and spray sealant.
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Before sealing, make sure your painting is fully prepared. It should be straightened, and you should be satisfied with the finished piece. The sealing process may require a bit of trial and error, as the amount needed can vary depending on the type of sealant you use—some may require just a small amount, while others may need thicker layers.
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When it comes to applying the sealant, using a brush is generally preferred over spray application. Brushing allows for more precise coverage, ensuring the sealant reaches the gaps between the diamonds where spray might not fully penetrate. Most experts recommend the brush-on method for the best results in diamond art. With brushing, you have greater control over the amount of sealant, reducing the risk of pooling or uneven coverage. Spraying, on the other hand, can sometimes result in overspray on surrounding areas, which may cause buildup and affect the painting’s appearance.
Methods
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Brushing or Sponging
This method involves pouring liquid sealant onto the painting or dipping your brush into the sealant to apply it across the surface. Work in sections, smoothing the sealant out with your brush or a sponge. It's important to ensure an even layer is applied throughout. Once you've finished, allow it to set and dry according to the instructions provided with your specific sealant.
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Spraying
This method involves using a spray application. Before you begin, ensure all the diamonds are securely set. Place your painting on a flat surface and apply a thin, even layer of spray sealant using a light, consistent spraying motion, keeping the spray nozzle at a steady distance to cover the entire canvas. Allow the sealant to dry completely before handling. For optimal results, use a water-based acrylic sealer designed specifically for crafting projects.
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Wiping
Some people believe that certain sealants can dull the shine and sparkle of the diamonds. However, many sealants actually claim to enhance the shine of the diamonds. To prevent any dulling, one method is to gently wipe the top of the painting with a damp cloth. This technique helps the sealant stay in the crevices, securely locking the drills in place, while keeping the surface bright and shiny.