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Pouring resin castings up to 5cm thick opens the door to robust, large-scale projects. Choosing the right epoxy and allowing sufficient curing time is key for success.
Which Resin is Best for Deep Castings?
For projects requiring pours between 2cm and 5cm thick, a specialised deep-pour epoxy is essential. For example, EpoxyTable 5-Five is formulated specifically to handle thicker layers without excessive heat build-up or bubble issues. This makes it ideal for tabletops, river tables, and artistic pieces needing substantial depth.
- Designed for castings up to 5cm thick
- Features low viscosity for fewer bubbles
- Long working time helps with intricate pours


How Long Does 5cm Resin Take to Harden?
Thicker resin pours harden much slower than thin layers. With a deep-pour resin such as EpoxyTable 5-Five, expect your casting to become workable in about 72 hours. However, full curing for maximum strength and clarity generally takes 5 to 7 days. It’s important not to rush demoulding or finishing, as premature handling may lead to distortion or surface imperfections.
Practical Advice for Large Resin Castings
If your project requires large surface areas or heavy single pours, it can be safer to pour in multiple layers, especially if one side exceeds 100cm or if the volume is substantial. Always measure and mix carefully to avoid sticky spots. Allow every layer to reach a gel-like state before adding the next when multi-layering is necessary. Make sure your workspace is level and dust-free to achieve a clean finish.

When This Matters
Choosing the right deep-cast resin and respecting curing times is essential when working on large pieces like tables, river beds, or thick sculpture projects. Using products built for thicker pours reduces the risks of yellowing, bubbles, and incomplete curing.
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For successful resin castings up to 5cm thick, select an epoxy designed for deep pours and allow time for a complete cure. For more resin hardening insights and product advice, visit our main guide on how long resin takes to harden.
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