Can Art Pro Resin Be Used for Thick Castings?

Art Pro epoxy is a popular choice for artists and makers looking for a crystal-clear, durable finish. But when it comes to thick castings, it’s important to understand what this product is designed for and when you might need a specialised resin.

Recommended Pour Thickness for Art Pro

Art Pro epoxy resin produces its best results in layers between 1mm and 10mm thick. Pouring within this range ensures optimal curing, clarity, and surface hardness. Attempting to cast thicker sections in one go can lead to issues such as overheating, cloudiness, or incomplete cures, as deeper pours generate more heat than the resin formula is designed to handle.

Best Practice for Thicker Projects

If you need to achieve a thicker final piece using Art Pro, it’s best to pour in multiple thin layers. Allow each layer to cure before adding the next. This approach minimises the risk of exothermic reactions and maintains clarity. However, for single, deep pours—especially for river tables or castings over 10mm—consider switching to a deep-pour epoxy, such as Epoxytable 10-Ten, which is formulated for castings up to 10cm thick.

When This Matters

Choosing the right resin is crucial for large creative pieces, thicker river tables, lamp castings, or embedded objects. Using the wrong type of epoxy not only affects appearance but can also lead to cracking or yellowing over time, so always match your product to the size and depth of your project.

Related guides

What Is An Epoxy Thinner

While Art Pro shines for thin and medium-depth layers, for impressive thick castings, opt for a dedicated deep-pouring epoxy. For more resin selection advice, visit the main epoxy resin FAQ page.