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Can You Use UV Resin in Silicone Molds

Resin enthusiasts are constantly seeking new techniques and materials to push the boundaries of their creativity. One such material that has gained significant popularity in recent years is UV resin. With its quick curing time and glossy finish, UV resin offers a unique set of advantages for resin crafters. However, there’s one burning question that often arises:

Can UV resin be used in silicone molds?

The short answer is yes!

In this article, we will delve into the world of UV resin and silicone molds to explore their compatibility and provide valuable insights for resin crafters looking to experiment with this combination.

By the end, you’ll have a clear understanding of whether UV resin can be used in silicone molds and the considerations to keep in mind for successful resin casting.

Let’s dive in!

Understanding UV Resin

UV resin is a type of resin that cures fast when exposed to ultraviolet (UV) light. Unlike traditional resins that require mixing and long curing times, UV resin offers a convenient and efficient curing process. It typically comes in a liquid form that hardens when exposed to UV light, resulting in a durable and glossy finish.

One unique property of UV resin is its rapid curing time.

Unlike other resins that can take hours or even days to cure, UV resin can cure within minutes when exposed to UV light. The fast curing allows resin crafters to create multiple layers and intricate details without the need for long waiting periods.

Additionally, UV resin is often self-leveling, meaning it spreads evenly over the surface, resulting in a smooth and professional-looking finish.

Benefits and Applications of UV Resin in Crafting Projects

The benefits of using UV resin in crafting projects are plentiful.

Firstly, its fast curing time allows crafters to complete their projects in a shorter timeframe.

This is particularly advantageous for those who enjoy quick and spontaneous creative sessions or have limited time available for their resin crafting endeavors.

Moreover, UV resin offers excellent clarity and transparency, making it ideal for creating jewelry pieces, keychains, and other small decorative items. The glossy finish achieved with UV resin enhances the overall aesthetics of the crafted objects, giving them a professional and polished look.

Another advantage of UV resin is its compatibility with various inclusions and other elements.

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Whether you want to incorporate dried flowers, glitter, or shaker charms, UV resin provides a secure and clear medium to showcase these elements. Its adhesive properties ensure that the inclusions remain firmly in place, resulting in visually stunning and durable resin creations.

Crafters can explore a wide range of appplications for UV resin, including but not limited to jewelr, keychains, shakers, coasters, bookmarks, and even small sculptures. The versatility of UV resin makes it a valuable tool for both hobbyists and those pursuing resin crafting as a side hustle.

Silicone Molds

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Silicone Mold Popularity in Resin Crafting

Silicone molds have become a staple tool in the world of resin crafting.

These molds are made from flexible and heat-resistant silicone material, which allows them to withstand the heat generated in the curing of various resins, such as UV resin and epoxy resin. Silicone molds come in a wide variety of shapes, sizes, and designs, catering to the diverse needs and preferences of resin crafters.


The popularity of silicone molds in resin crafting can be attributed to their versatility and ease of use. Crafters can find clear silicone molds in countless intricate patterns, ranging from geometric shapes to floral motifs and everything in between.

These molds enable resin enthusiasts to create detailed and captivating designs without the need for advanced sculpting skills other materials, or techniques.

Advantages of Using Silicone Molds for Resin Projects

There are several advantages to using silicone molds for resin projects.

Firstly, the flexibility of silicone molds allows for easy demolding of cured resin pieces. Unlike rigid molds, silicone molds can be gently bent or flexed, making it effortless to release the creation without any damage. This ensures that the final product retains its shape and fine details, resulting in high-quality finished pieces.

Another benefit of silicone molds is their durability. Silicone is a long-lasting material that can withstand multiple uses without deteriorating or losing its shape. Crafters can rely on silicone molds for repeated resin castings, making them a cost-effective investment in the long run.

Furthermore, silicone molds provide a smooth and non-stick surface, which minimizes the need for additional mold release agents.

Resin crafters can pour their UV resin directly into the silicone molds without worrying about the resin sticking to the mold’s surface. This saves time and effort, streamlining the crafting process.

Additionally, silicone molds offer great detail reproduction.

The flexibility of the material allows it to capture even the tiniest intricacies of a design, resulting in highly accurate and visually appealing creations. Crafters can achieve stunning results with minimal effort, thanks to the remarkable precision offered by silicone molds.

Compatibility of UV Resin with Silicone Molds

The compatibility between UV resin and silicone molds stems from the unique properties of both materials. UV resin cures through exposure to UV light, and silicone molds offer flexibility and heat resistance.

When UV resin is poured into a silicone mold, it fills the mold’s intricate details and hardens when exposed to UV light, resulting in a solid and well-defined piece.

The flexibility of silicone molds allows for easy demolding without damaging the cured resin.

Considerations and Precautions For UV Resin in Silicone Molds

While using ultraviolet resin in silicone molds is generally straightforward, there are a few considerations and precautions to keep in mind for successful resin casting.

Firstly, ensure that the silicone mold is clean and free from any dust or debris that could affect the surface finish of your creation.

Cleaning the mold thoroughly before each use will help maintain the clarity and good quality all of your pieces.

Additionally, it’s important to follow the manufacturer’s instructions for both the UV resin and the silicone mold. Different brands and types of UV resin may have specific recommendations regarding curing times and thicknesses. Similarly, silicone molds may have specific instructions for proper use and demolding techniques. Adhering to these guidelines will help you achieve the best results with your UV resin and silicone molds.

Lastly, it’s worth noting that UV resin cures quickly under UV light. Therefore, it’s essential to work efficiently and have all your materials and tools prepared before starting the resin casting process. This will ensure that you can pour and cure the resin within the appropriate timeframe and avoid any cure issues.

Tips and Techniques for UV Resin Molded in Silicone

Here are a few tips I have picked up along the way that if you follow you’ll be well on your way to creating beautiful resin pieces with UV resin and silicone:

Prepare your workspace

Before you start working with UV resin and silicone resin molds, ensure that your workspace is clean, well-lit, and properly ventilated. Having a dedicated area for crafting will help you stay organized and minimize the risk of accidents.

Measure and mix carefully

Follow the instructions provided by the manufacturer for measuring the UV resin and any required additives. Accurate measurements are crucial to ensure optimal results. Use disposable measuring cups and stir thoroughly, making sure there are no streaks or unmixed portions.

Avoid overfilling the molds

When pouring UV resin into silicone resin molds, avoid overfilling. Resin tends to expand slightly during the curing process, and overfilling can lead to spillage or distortion of your resin piece. Fill the molds up to about 90% full to allow room for expansion.

Remove air bubbles

To eliminate air bubbles in your resin, use a heat gun or a butane torch. Gently pass the heat source over the bubbles on the resin surface in a sweeping motion, being careful not to overheat or burn the top resin layer. The heat will cause the bubbles to rise and pop, resulting in a bubble-free and clear resin piece.

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Step-by-Step Instructions For UV Resin in Silicone Molds

  1. Prepare the silicone mold: Ensure that your silicone mold is clean and free from any debris or residue. Apply a thin layer of mold release agent if necessary, following the instructions provided by the mold manufacturer.
  2. Measure and mix the UV resin: Follow the manufacturer’s instructions for measuring the appropriate amount of UV resin. Add any desired colorants or inclusions, if applicable, and mix thoroughly.
  3. Pour the UV resin into the silicone mold: Slowly pour the mixed UV resin into the silicone mold, filling it up to about 90% full. Use a toothpick or a craft stick to guide the resin into any intricate details or tight spaces.
  4. Remove air bubbles: Use a heat gun or a butane torch to remove air bubbles from the resin surface. Pass the heat source over the resin in a sweeping motion, focusing on areas with visible bubbles.
  5. Cure the resin: Place the filled silicone mold under a UV light source, following the recommended curing time provided by the UV resin manufacturer. Ensure that the resin is exposed to the UV light evenly for proper curing.
  6. Demold and finish: Once the curing time is complete, carefully remove the resin piece from the silicone mold. Trim any excess resin if necessary and sand the edges for a smooth finish. Clean the resin piece with a mild soap solution and let it fully cure according to the resin manufacturer’s instructions.

UV Resin Brands or Types that Work Well with Silicone Resin Molds

Lets Resin UV Resin: Lets Resin UV Resin is known for its excellent clarity and self-leveling properties, making it ideal for creating jewelry pieces and small decorative items in silicone resin molds. It cures quickly under UV light and provides a glossy finish to your resin creations.

Vida Rosa UV Resin: Vida Rosa UV Resin boasts a clear and super hade finish and is compatible with all types of resin molds. Ideal for jewelry making it is a versatile resin that allows for the durable creations without the residual post cure stickiness of many other resins.

Bsrezn UV Resin : Bsrezn UV Resin is specifically formulated for low odor an a 12 month shelf life. It offers a low viscosity, which allows it to easily fill the smallest details of the mold. It cures to a hard and clear finish, that resists yellowing ensuring the intricate designs are beautifully preserved.

Popular Silicone Resin Molds Compatible with UV Resin

Geometric Shapes Mold Set: This silicone mold set features various geometric shapes such as circles, squares, triangles, and hexagons. It is perfect for creating modern and minimalist resin pieces, including coasters, pendants, and keychains.

Flower and Leaf Mold: For those looking to incorporate floral designs into their resin crafts, a flower and leaf mold is a great choice. This mold typically includes different flower and leaf shapes, allowing you to create intricate botanical-inspired resin pieces.

Jewelry Mold Kit: A jewelry mold kit provides a wide variety of shapes and sizes specifically designed for creating jewelry pieces. From earrings and pendants to rings and bangles, this mold kit offers endless possibilities for resin crafters.

Animal Keychain Mold Set: This silicone mold set features molds that various animal shapes intended to be used for keychains. It is a fantastic option for resin crafters who want to infuse their creations with organic and earthy vibes.

When selecting UV resins to use with silicone, it’s important to consider the specific requirements of your project, the desired outcome and different crafting methods such as the layering method.

These recommended combinations are popular among resin crafters and have been found to work well together, but don’t hesitate to explore and experiment with different brands and molds to find your perfect match.


Now that you have gained insight into the exciting combination of UV resin and silicone resin molds, it’s time to unleash your creativity and dive into the world of resin crafting.

Whether you’re a beginner or an experienced crafter, using UV resin in silicone resin molds opens up a realm of possibilities for creating unique and personalized resin pieces.

Experiment with different molds, colors, and techniques to discover your own artistic style. So, grab your UV resin kit, pick a silicone mold, and let your imagination soar!

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