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When creating unique jewellery with epoxy resin, casting thickness can have a major impact on your project’s success. Choosing the right resin ensures a clear, durable result and reduces the risk of common issues during deeper pours.
Why thickness matters in resin casting
Standard jewellery resins are designed for shallow pours, typically up to 1–1.5cm per layer. Attempting thicker casts with the wrong formula may cause overheating or ‘incomplete curing’, where the resin remains sticky or develops cloudy areas. For jewellery pieces between 1.5cm and 2cm thick, it’s best to use a purpose-formulated casting resin that balances bubble release, clarity, and controlled curing speed.
Recommended resin for up to 2cm thick jewellery
For castings up to 2cm deep, “Trasparente” Multipurpose Clear Epoxy Resin is a versatile choice. Its formula is designed for clarity and even curing in layers up to 2cm, making it suitable for thicker pendants, statement rings, or embedded keepsakes. For projects approaching this limit, pouring in two stages can help minimise heat build-up.
- Mix resin thoroughly following product-specific instructions
- Pour in controlled conditions, at room temperature and on a level surface
- Allow each layer to cure fully if your jewellery design exceeds 2cm in total thickness
When this guidance is essential
Casting thicker pieces matters most when you’re making bold sculptural jewellery, designs with embedded objects, or chunky charms. Using a resin suitable for deeper pours avoids the pitfalls of cloudiness and sticky finishes, which can otherwise ruin detailed or sentimental creations.
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For statement jewellery beyond 1.5cm thickness, choosing a resin such as “Trasparente” helps achieve flawless clarity and reliable curing. Explore more about selecting the ideal resin for every jewellery style on our main jewellery resin hub.