A Beginner’s Guide to Casting Epoxy Resin: Tips and Techniques for Stunning Creations

Are you eager to dive into the captivating world of epoxy resin art? Whether you’re an aspiring resin artist or just curious about this mesmerizing craft, you’ve come to the right place. In this comprehensive guide, we’ll walk you through the essentials of casting epoxy resin, providing you with valuable insights on resin usage, mold selection, creative techniques, and the critical aspect of understanding resin for achieving successful results.

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Art epoxy resin, deep pour epoxy resin, and casting epoxy resin are all types of epoxy resins, but they are formulated differently to suit specific applications. Here are the key differences between these three types of epoxy resins:

Art Epoxy Resin:

  • Purpose: Art epoxy resin is primarily designed for creating artwork, jewelry, and other small-scale craft projects. It is commonly used for coating paintings, creating resin jewelry, and making decorative items like coasters and trays.
  • Viscosity: Art epoxy resin typically has a low to medium viscosity, which means it is relatively thin and can be easily poured and spread. This allows for the creation of thin, smooth layers.
  • Mixing Ratio: The mixing ratio for art epoxy resin is often 1:1, which means equal parts of resin and hardener are mixed together.
  • Working Time: Art epoxy resin typically has a longer working time (pot life) to allow for intricate designs and the removal of air bubbles.
  • Curing Depth: It is not suitable for deep pours or thick casting applications. It is generally used for coatings ranging from thin layers to a few millimeters in thickness.

Deep Pour Epoxy Resin:

  • Purpose: Deep-pour epoxy resin is designed for projects that require thicker casting and pouring, such as river tables, live edge tables, and large-scale art pieces. It is ideal for creating clear, thick layers in a single pour.
  • Viscosity: Deep-pour epoxy resin has a higher viscosity than art epoxy resin, which makes it thicker and less prone to running off vertical surfaces.
  • Mixing Ratio: The mixing ratio may vary, but it often requires careful measurement to ensure proper curing.
  • Working Time: Deep-pour epoxy resin typically has a shorter working time (pot life) compared to art epoxy resin due to its thicker nature. This limits the time available for mixing and pouring.
  • Curing Depth: Deep pour epoxy resin is formulated to cure in thick layers, often up to several inches deep without excessive heat generation or cracking.

Casting Epoxy Resin:

  • Purpose: Casting epoxy resin is specifically designed for making three-dimensional castings, such as sculptures, figurines, and molds. It is used when you need to create detailed and solid objects.
  • Viscosity: Casting epoxy resin has a very low viscosity, which allows it to flow easily into intricate molds and capture fine details.
  • Mixing Ratio: The mixing ratio may vary depending on the brand and type, but it is often formulated for longer curing times to reduce the risk of trapped air bubbles.
  • Working Time: Casting epoxy resin typically has a longer working time (pot life) compared to deep-pour epoxy resin, as it is often used for complex and detailed projects.
  • Curing Depth: Casting epoxy resin is designed to cure deep molds and create solid objects with minimal heat generation.
  • In summary, the key differences between these epoxy resins are their intended applications, viscosity, mixing ratios, working times, and curing depths. Choosing the right type of epoxy resin depends on the specific project you are working on, so it’s important to select the one that best suits your needs.

Getting Started with Epoxy Resin Casting

In this section, we’ll lay the foundation for your resin-casting journey. We’ll explore the basics of resin usage, the types of molds you can use, and the wide array of items you can create with epoxy resin. We’ll also touch on essential techniques for creating mesmerizing effects, all while emphasizing the importance of understanding resin for consistent success.

Introduction to Epoxy Resin Casting

Epoxy resin casting involves mixing two components, resin and hardener, to create a durable and versatile material. It’s widely used in crafting, jewelry making, and even home repairs. The beauty of epoxy resin lies in its ability to capture intricate details and provide a glass-like finish to your creations.

Understanding Epoxy Resin

What is Epoxy Resin?

Epoxy resin is a synthetic polymer that, when combined with a hardener, undergoes a chemical reaction resulting in a solid, durable material. It is known for its high gloss and excellent adhesive properties.

Types of Epoxy Resin

There are various types of epoxy resin available, each tailored to specific applications. Some are designed for casting, while others excel in coating and laminating. Choosing the right type is crucial for the success of your project.

Safety Precautions

Before you embark on your epoxy resin casting journey, it’s essential to prioritize safety.

  • Ensure you work in a well-ventilated area to minimize inhaling fumes. A respirator and open windows can help maintain clean air.
  • Wear appropriate PPE, including gloves and safety goggles, to protect your skin and eyes from resin exposure.

Essential Materials and Tools

To get started with epoxy resin casting, you’ll need a few key items.

Resin and Hardener

Select a high-quality epoxy resin and hardener suitable for your project. Always follow the manufacturer’s recommendations for mixing ratios.


Choose molds that match your project’s design. Silicone molds are popular due to their flexibility and ease of demolding.

Epoxy resin molds come in a wide variety of shapes, sizes, and materials to suit different casting projects. Understanding the types of molds available can greatly enhance your resin casting experience. Here are some common types:

Silicone Molds

Silicone molds are perhaps the most popular choice for epoxy resin casting and for good reason. They are flexible, durable, and easy to work with. Here’s more on silicone molds:

  • Flexibility: Silicone molds are highly flexible, allowing for easy demolding of resin creations without the need for a release agent. This flexibility ensures that your castings maintain their intricate details.
  • Durability: Silicone molds can withstand multiple uses without degrading. They are resistant to tears and can last for a long time if cared for properly.
  • Variety: Silicone molds are available in a wide range of shapes and sizes. You can find molds for making jewelry, coasters, keychains, and larger items like trays and bowls.
  • Ease of Use: These molds are user-friendly and suitable for beginners. The flexibility of silicone makes it simple to pop out your resin pieces once they’ve cured.

Mixing Tools

Use disposable cups, stir sticks, or a dedicated epoxy resin mixer to ensure thorough and bubble-free mixing.

Colorants and Additives

Experiment with pigments, dyes, or glitter to add color and flair to your creations.

Pigments vs. Dyes

Before we delve into the details, it’s essential to understand the difference between pigments and dyes in the context of epoxy resin:


  • Powder or Paste: Pigments for epoxy resin are typically available in powdered or paste form. They are finely ground particles of color.
  • Opacity: Pigments are often opaque, which means they can completely cover the underlying surface, making them ideal for achieving vibrant and solid colors.
  • Color Variety: You can find pigments in a vast array of colors, from primary hues to intricate metallics and even glow-in-the-dark options.
  • Mixing: Pigments are easily mixable with epoxy resin, allowing you to create custom shades by blending different colors.


  • Liquid Form: Resin dyes are usually in liquid form. They are highly concentrated colorants that are added drop by drop to the resin.
  • Transparency: Dyes are transparent or translucent, which means they allow light to pass through. This property is excellent for achieving stained glass or watercolor-like effects.
  • Color Variety: While dyes offer a wide range of colors, they may have fewer options compared to pigments. However, they excel in creating translucent and subtle hues.
  • Control: Dyes provide precise control over the intensity of color. By adjusting the number of drops, you can achieve varying degrees of transparency.

How to Use Pigments and Dyes in Epoxy Resin Casting

Now, let’s explore how to use pigments and dyes effectively in your resin casting projects:

Pigments (powder or paste)

  1. Preparation: Start by preparing your epoxy resin mixture according to the manufacturer’s instructions. Ensure that the resin and hardener are well-mixed and free of bubbles.
  2. Add Pigment: Sprinkle or stir the desired amount of pigment into the epoxy resin mixture. The quantity you use will depend on the depth of color you want to achieve. Start with a small amount and gradually add more until you reach the desired shade.
  3. Mix Thoroughly: Stir the pigment into the resin mixture thoroughly, ensuring that there are no streaks or clumps. You may use a plastic or silicone stir stick for this purpose.
  4. Test: Before pouring the resin into your mold, it’s a good practice to test the color on a small resin sample. This allows you to make any adjustments if needed.
  5. Pour: Once you’re satisfied with the color, pour the pigmented resin into your mold, following your project’s design or pattern.
  6. Demolding and Finishing: After curing, demold your resin piece and proceed with any necessary finishing, such as sanding and polishing.

Dyes (liquid, alcohol-based)

  1. Preparation: Prepare your epoxy resin mixture as usual, ensuring it’s well-mixed and free of bubbles.
  2. Drop by Drop: Using a dropper or pipette, add resin dye to the mixture one drop at a time. Start with a small number of drops and gradually increase to achieve the desired transparency and color intensity.
  3. Stir Gently: After adding each drop of dye, stir the resin mixture gently to evenly distribute the color. Take your time to avoid over-pigmenting the resin.
  4. Test: As with pigments, it’s advisable to test the color on a small sample before pouring it into your mold.
  5. Pour: Once you’re satisfied with the color, pour the dyed resin into your mold, following your design or pattern.
  6. Demolding and Finishing: After curing, demold your resin piece and proceed with any finishing touches.

Tips for Working with Pigments and Dyes

  • Start Light: It’s easier to add more pigment or dye to darken the color than it is to lighten it, so begin with a conservative amount.
  • Mix Well: Thoroughly mix the coloring agent into the resin to avoid streaks or uneven color distribution.
  • Experiment: Don’t be afraid to experiment with different pigment and dye combinations to achieve unique effects.
  • Layering: You can create stunning effects by layering colored resin in your molds, allowing each layer to partially cure before adding the next.
  • Safety: Wear gloves and work in a well-ventilated area when handling pigments or dyes.
  • Fading and UV Effect: Most alcohol inks fade fast especially if exposed to sunlight.

Pigments and dyes open up a world of possibilities for resin artists, allowing you to bring your creative visions to life with an array of colors and effects. Whether you want to create vibrant, solid pieces with pigments or achieve ethereal, translucent designs with dyes, mastering the use of these coloring agents will elevate your epoxy resin casting projects to new heights.

Preparing Your Workspace

Create a clean and organized workspace to streamline your resin casting process. Cover surfaces with plastic sheets to prevent any accidental spills or messes. Use a silicone mat as they make cleanup so much easier.

Mixing Epoxy Resin

Achieving the correct resin-to-hardener ratio is crucial for a successful cast. Resin is measured by volume so you do not need a scale. Measure part A and part B separately before mixing to avoid accidental miss-measuring.

Measure your components precisely to maintain the resin’s integrity. Deviating from the recommended ratio can result in under-cured or over-cured resin.

Avoiding Bubbles

Mix the resin and hardener slowly to minimize the introduction of air bubbles. A heat gun or torch can help remove any surface bubbles before pouring. Use a long-neck lighter if possible and avoid overheating. Do not scorch the silicone mold. This happens quickly.

Pouring and Casting

Now comes the exciting part – turning your creative vision into reality.

Practice various casting techniques, such as layering, embedding, and using different molds, to craft unique pieces.

Curing and Drying

Patience is key when working with epoxy resin. Allow sufficient curing time for your projects to fully harden and develop their glossy finish.

Demolding and Finishing

After the resin has cured, carefully remove your cast pieces from the molds.

Flex silicone molds gently to release your creations without damaging them.

Smooth rough edges and polish your resin pieces to achieve a professional finish through sanding and polishing.

For those seeking to push the boundaries of epoxy resin casting, consider exploring advanced techniques.

resin frog

Layering and Embedding

Create stunning 3D effects by layering different resin pours or embedding objects within your cast.

Transform resin into a canvas for your artistic expression. Experiment with colors, textures, and shapes to craft unique art pieces.

Troubleshooting Common Issues

Despite your best efforts, you may encounter some challenges along the way.

Dealing with Bubbles

Bubbles can be a common issue in resin casting. Learn how to prevent and address them effectively.

Resin Not Setting

If your resin remains tacky or doesn’t cure properly, troubleshoot the causes and find solutions.

Inspiring Project Ideas

Epoxy resin casting opens up a world of creative possibilities. Here are some project ideas to spark your imagination:

  • Resin jewelry
  • Coasters
  • Wall art
  • Keychains
  • Tabletops

Maintenance and Care

To ensure the longevity of your resin creations, follow proper maintenance and care guidelines.


Epoxy resin casting is an exciting and versatile craft that allows you to create stunning, glossy masterpieces from the comfort of your own home. With the right materials, techniques, and safety precautions, you can embark on a creative journey filled with endless possibilities.


  1. Is epoxy resin casting safe for beginners?
    • Yes, epoxy resin casting is beginner-friendly, but it’s essential to start with simple projects and prioritize safety precautions.
  2. How long does epoxy resin take to cure?
    • Cure times can vary based on the specific product used, but most epoxy resins fully cure within 24 to 72 hours.
  3. Can I add color to epoxy resin?
    • Absolutely! You can use various colorants, including pigments, dyes, and even acrylic paints, to add vibrant hues to your resin projects.
  4. What should I do if I encounter excessive bubbles in my resin?
    • To address bubbles, gently heat the surface with a heat gun or torch and use a toothpick to pop any stubborn bubbles.
  5. Where can I purchase epoxy resin and supplies?
    • Epoxy resin and related materials can be found at craft stores, online retailers, and even some home improvement stores.

Choosing the Right Epoxy Resin

Choosing the right epoxy resin is crucial to your project’s success. We’ll delve into the characteristics of ideal casting resin, including the 2:1 mixing ratio, crystal-clear transparency, self-leveling properties, and coloring. You’ll also learn about resin’s working and curing times and how longer working times provide flexibility in your creative endeavors.

Understanding Different Casting Resins

Not all casting resins are created equal. We’ll explore the various properties of casting resins, from thickness to bubble susceptibility, helping you make informed choices. Learn how to pick the right resin for your project’s depth, avoiding issues like excessive heat, air bubbles, and discoloration. We’ll also delve into shallow casting vs. deep pouring techniques, providing you with practical guidelines.

Tips for Bubble-Free Resin Casting

Bubbles can be the bane of resin artists, but we’ve got you covered. Discover how to avoid adding moisture to your resin, perfect the art of mixing resin to prevent bubbles, and allow your resin to sit before working with it for proper curing.

Techniques for a Flawless Finish on Resin

Learn how to let bubbles rise and use a heat gun to remove them effectively. Ensure your safety by wearing protective gear and using resin pigments in moderation to avoid issues with the resin setting. Discover why silicon molds are the go-to choice for pouring resin.

Silicone Molds and Their Magic

Silicone molds offer unmatched flexibility and ease of removal for resin artists. Dive into how the depth of the mold influences the effects you can achieve. Understand why cream pigments behave differently in resin and how a titanium cream pigment can create captivating effects.

Creating Stunning Effects with Layered Pouring

Unlock the secrets of creating depth and dimension in your epoxy resin pieces. Discover how pouring epoxy resin in layers and coating the bottom of your creations before adding elements like flowers can prevent them from floating to the top. Learn when and how to achieve a breathtaking 3D bloom effect.

Finishing Touches for Epoxy Resin Pieces

As you complete your resin art, don’t miss the finishing touches. Check for sharp edges and use deburring tools or sandpaper if needed. Consider polishing or top coating only if you encounter issues like bubbles or prefer a glossy finish.

With this comprehensive guide, you’re now well-equipped to embark on your epoxy resin casting journey. Armed with knowledge about resin selection, techniques, and troubleshooting, you can create stunning resin pieces that will leave everyone in awe. So, go ahead and dive into the mesmerizing world of epoxy resin art, and let your creativity flow! If you have any questions or want more insights on deep pore castings, feel free to leave them in the comments below. Happy casting!

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Sharron Gimik
Sharron Gimik

Sharron is the founder and creator of Homestead Sparkle, Down Home Wicks, Bundt Cake Admiration, and Timbers Cove. She loves crafts of all kinds and started as a candle maker. She loves to bake and collect decorative cake pans too.

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