Creating a high-quality mould is the foundation of every successful epoxy resin project, whether you’re crafting decorative pieces, personalised gifts, or bespoke river tables. The right mould ensures your resin pieces are precise, easy to demould, and free from imperfections. At ResinPro, discover everything you need for professional results and smooth workflow from start to finish.

This step-by-step guide explores how to choose and use the ideal mould products, with recommendations and tips to elevate your epoxy resin casting experience.

Which Mould Materials Are Best for Epoxy Resin?

When it comes to mould making for epoxy resin, silicone stands out due to its flexibility, non-stick surface, and ease of use. Products such as the “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making are especially suitable. This platinum-based, translucent mix has a simple 1:1 ratio, offering fast curing (3–8 hours), and is perfect for creating detailed, reusable resin moulds. It accommodates various casting materials, including epoxy, polyester, and acrylics.

For beginners or those embarking on larger projects like river tables, the “River-Table” – Complete Kit for Creating Your First Epoxy Resin Table offers comprehensive support, including silicone sealant, release film, and detailed step-by-step instructions for dependable and mess-free results.

Ready-Made Silicone Moulds for Easy Epoxy Casting

If you prefer convenience, browse our ready-made moulds, like the “Silicone Circle Mould” – For Creating with Epoxy Resin, Ø 20cm and the “Rectangular Mould” – Silicone Formwork 19.5×13.5cm. These options are made from professional-grade, durable silicone, ensuring your projects demould smoothly every time.

For square resin art or keepsakes, the “Square Mould” – Formwork for Resin, 15.3×15.3cm provides a perfectly shaped base. Like all our silicone moulds, it’s reusable, non-stick, and heat-resistant.

Product Comparison: Choosing the Right Mould Solution

Whether you want to design a custom-sized mould for a specific project or need a straightforward solution, ResinPro has you covered. Here’s a quick overview:

• Custom Moulds: “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making lets you build any shape you like, from tiny jewellery to larger prototypes. Its translucency aids visual control while pouring.
• Beginner Kits: The “River-Table” Kit is ideal for those starting out, as it includes all necessary materials—including resin, silicone rubber, and release film—plus instructions for perfect results on your first try.
• Ready-Made Moulds: For convenience, choose from the “Silicone Circle Mould”, “Rectangular Mould”, or “Square Mould” to jump straight into your resin project without the hassle of preparation.

Step-by-Step: Creating Your Own Epoxy Resin Mould

1. Choose and Prepare Your Materials: Select a suitable mould product for your project. The versatile “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making is ideal for custom shapes, while ready-made moulds such as the “Silicone Circle Mould”, “Rectangular Mould”, or “Square Mould” offer a quick start for common shapes.

2. Mixing and Pouring Silicone: For custom moulds, mix the silicone components according to instructions (the “Pure Mould” product features a user-friendly 1:1 ratio) and pour onto your master model in a dust-free area. Allow to cure as specified.

3. Demoulding and Finishing: Once fully cured, demould gently. Silicone’s non-stick properties mean your resin piece should release cleanly, but always follow cure and removal recommendations. For ready-made moulds, simply pour and cure your resin, then release after the recommended time (generally within 12 hours for optimal results).

Top Tips for the Best Epoxy Resin Moulds

Follow these best practices for professional outcomes:

• Ensure your workspace is clean and level before mixing epoxy and pouring into the mould.
• Use certified non-toxic and odourless silicone for safe usage and higher quality moulds.
• Remove resin pieces within the recommended timeframe to prevent excess adhesion to the mould.
• Avoid harsh solvents when cleaning silicone moulds—gentle soap and warm water are sufficient.
• Store your silicone moulds away from direct sunlight and high temperatures for longevity.

If you’re after more guidance, the “River-Table” Kit provides detailed instructions, making it ideal for less experienced users aiming to avoid common mistakes.

Find Your Perfect Solution: Our Most Popular Silicone Moulds

ResinPro’s selection includes dedicated solutions for all levels and project types. Whether you’re exploring artistic coasters, personalised home décor, or statement resin furniture, our range delivers durable, reusable, and high-performance moulds. Shop the full selection, or discover products by category—such as silicone rubbers, Complete Kits, and our range of New products.

Start your next masterpiece with confidence—choose the right mould and pour like a professional, every time.