Best Resin for Spheres of Different Sizes

Q: Matching Resin to Sphere Size

If you’re making petite spheres up to 1.5cm in diameter, Icrystal is an excellent choice. Its formulation is optimised for thick but small layers, ensuring clarity without unwanted heat buildup. For larger spheres up to 2cm, Trasparente gives you a little more flexibility, allowing you to work with a thicker single pour while maintaining transparency. For spheres up to 1.5cm: Icrystal epoxy resin For spheres up to 2cm: Trasparente epoxy resin For spheres larger than 2cm, a deep-pour specialised resin is required, and you’ll need to pour in stages to prevent overheating or cloudiness.

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Which Resin Is Best for Different Sphere Sizes?

Selecting the right resin for your sphere size is key to ensuring crystal clarity and a smooth casting process. Not all resins perform equally well for small or medium moulds, so matching your resin choice to your project is essential.

Matching Resin to Sphere Size

If you’re making petite spheres up to 1.5cm in diameter, Icrystal is an excellent choice. Its formulation is optimised for thick but small layers, ensuring clarity without unwanted heat buildup. For larger spheres up to 2cm, Trasparente gives you a little more flexibility, allowing you to work with a thicker single pour while maintaining transparency.

For spheres up to 1.5cm: Icrystal epoxy resin
For spheres up to 2cm: Trasparente epoxy resin

For spheres larger than 2cm, a deep-pour specialised resin is required, and you’ll need to pour in stages to prevent overheating or cloudiness.

Guidance for Pouring and Moulds

Always follow the maximum pour thickness recommended for your chosen resin. Overpouring can result in heat build-up, causing bubbles or imperfections. Using a quality silicone mould like the 3 Sphere Silicone Mould ensures a smooth demould and a glossy finish, ideal for DIY jewellery and decorative pieces.

Pour in layers if you exceed the recommended thickness.
Avoid aggressive solvents when cleaning your mould.
Remove your sphere from the mould within 12 hours to maintain shape and prevent sticking.

When Sphere Size Choice Matters

Your choice of resin makes a real difference for small, clear spheres where optical clarity and minimal bubbles are desired. If you plan to embed objects or need perfect transparency, stick closely to resin layer limits for best results.

Related guides

How To Make Resin Spheres

Choosing the best resin for your sphere’s size not only affects the look but also saves you time and hassle. For more guidance and creative ideas, visit our main guide on how to make resin spheres.