Best Resin for Solid Block Castings Over 2cm Thick

Solid block castings thicker than 2cm require a specialised epoxy resin designed to manage the heat and curing challenges of deep pours. Choosing the right product ensures clarity, strength, and a smooth finish for your artistic or functional projects.

Why Deep Pour Resins Are Essential

Standard epoxy resins are not suitable for thick block castings, as they can overheat or cure unevenly. Specially formulated deep pour resins, such as EpoxyTable 5-Five, are engineered to allow safe, controlled curing in single pours up to 5cm thick. For even deeper castings—up to 10cm—the “Epoxytable 10-Ten” resin has been developed to further prevent excessive heat build-up and maintain clarity.

Choosing the Right Resin for Your Project

When casting solid blocks, handles, or decorative items thicker than 2cm, it’s important to match your resin to the size and depth of your mould. EpoxyTable 5-Five is a reliable choice for projects between 2cm and 5cm in depth, while “Epoxytable 10-Ten” covers castings from 5cm up to 10cm. Both options offer long working times, low viscosity to reduce bubbles, and built-in filters to help maintain clarity over time.

For most block castings and handles: Use EpoxyTable 5-Five (2–5cm)
For super-thick blocks and deep set pieces: Choose Epoxytable 10-Ten (up to 10cm)

Tips for Successful Solid Block Casting

For best results, work in a dust-free environment, pour slowly to avoid trapping air, and check your mould is leak-proof. Deep pours cure over several days—patience ensures both clarity and structural integrity. Always follow the product instructions closely regarding mixing ratios and room temperature to prevent cloudiness or incomplete curing.

When Deep Casting Really Matters

If your design is a thick, solid object—such as a decorative block, tool handle, or embedded keepsakes—using a deep pour resin is crucial. It provides the stable, bubble-free structure required for larger volumes that regular resins simply can’t guarantee.

Related guides

Epoxy Resin For Thick Casting

Choosing an epoxy resin specifically formulated for thick castings gives you peace of mind and a professional result, whether crafting solid blocks or unique table pieces. For more on this topic, explore our full guide on epoxy resin for thick casting.