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Choosing the right epoxy resin for thick casting projects is crucial for achieving clear, stable results. The correct formula helps prevent overheating, warping, or surface defects when pouring layers deeper than 2cm. Here’s what to consider for deep pours and river tables.
What Resin to Use for Deep Casting?
For pours between 2cm and 5cm in thickness, EpoxyTable 5-Five is designed for deep projects like tabletops and artistic castings. It allows for thicker layers due to its low exothermic reaction, reducing the risk of cracking or yellowing.
When your project exceeds 5cm—and up to 10cm—Epoxytable 10-Ten is best. Its super-low viscosity lets you create impressively deep, clear castings without excess heat generation, making it suitable for large river tables or chunky sculpture work.
Practical Tips for Thick Pours
- Mix Carefully: Follow the recommended mixing ratios (e.g., 100 parts resin to 55 parts hardener for EpoxyTable 5-Five) and blend thoroughly for a consistent cure.
- Layered Casting: For very large projects (over 100cm on one side or over 8kg per pour), consider layering the resin. Pour one layer, let it partially set for 6–8 hours, then apply the next to avoid overheating.
- Work in Suitable Conditions: Maintain moderate temperatures and avoid high humidity to ensure proper curing without surface issues.
When Layering and Resin Choice Matter
The choice of resin and whether to layer your pours becomes especially important when working on projects beyond 5cm in thickness or on large, wide surfaces. Proper selection helps preserve clarity and structural integrity, particularly for high-value tables or statement pieces.
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Using the right deep-pour epoxy will make your thick casting project both beautiful and stable. For more tips on planning and calculating the resin you need, visit the full How to calculate the amount of epoxy resin? guide.