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Choosing the right epoxy resin mixing ratio and layer thickness is vital to achieving strong, clear results in any resin project. Whether you’re casting furniture, jewellery, or creative crafts, getting these steps right ensures success from the very start.
Understanding Mixing Ratios
Epoxy resins are supplied with a resin and a hardener, mixed to a set ratio for full curing. Common ratios include 100:55 by weight (for thicker, deep pour table resins) and 1:1 by volume (for jewellery resins). Always follow the instructions provided with your specific kit, as the proportions can vary. Accurate weighing or measuring is essential—errors can leave resin sticky or weak.
If you’re new to resin work, kits like the River-Table Complete Kit and the Evershine Collection Jewellery Kit come with clear ratios and guidance to minimise any guesswork.
Picking the Right Layer Thickness
The allowed layer thickness is determined by the resin’s chemistry. Deep pour resins for tables can usually be poured in layers between 2cm to 5cm. If you need more depth, it’s important to work in stages, letting each layer reach its recommended hardness before adding the next. For items like jewellery, use resins designed for smaller casts (typically up to 1cm), as they cure faster and produce clearer results.
- Tables and Large Projects: Use deep pour epoxies up to 5cm per layer.
- Jewellery & Crafts: Choose clear resins with a 1:1 ratio for layers around 0.5–1cm.
Practical Tips for Resin Pouring
Preparation is key. Use precise digital scales or graduated mixing cups. Ensure your work area is level and work in a dust-free space. Pour steadily and avoid exceeding the recommended thickness for each resin type, as thicker pours may overheat or fail to cure properly. If you require thicker results, allow existing layers to partially cure before adding more resin.
When This Matters Most
Mixing ratios and layer thickness are essential considerations for beginners or anyone undertaking larger, high-value projects. Incorrect ratios or excessive layer depths can affect clarity, curing, and the strength of your finished piece.
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Getting your resin mixing ratio and pouring depth right is the foundation for every successful project. For more detailed help on working with resin, see our full guide on how to work with resin.