When working with epoxy resin, understanding how it interacts with various surfaces is essential for successful results. A common query is: Does epoxy resin adhere to silicone? Whether you are casting, mould making, or creating custom jewellery, knowing about compatibility and how to achieve clean demoulding or secure bonds is key. This page gives you the facts—supported by professional product recommendations—so your next resin project runs smoothly.

Read on as we explore the relationship between epoxy resin and silicone, the role of different adhesives, and when to use moulds or specialised products. We’ll highlight expert options like the “Klebfix” – Two-Component Fast Epoxy Glue 2K, 25g Syringe for superior quick repairs, and essential silicone mould making products such as “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making, “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B and “I–Gum” – Non-Toxic Silicone Putty for Mould Making.

If you are seeking clear, odourless epoxy for crafts or coatings, discover “Icrystal” – Clear Epoxy Resin – Odourless Formula – Up to 1.5cm and its fast-setting alternative, “ICreation” – Fast Epoxy Resin, 6h Demoulding, Transparent Gloss Finish. Let’s clarify what sticks, where, and why!

Epoxy Resin and Silicone: Understanding Their Adhesion Properties

Silicone is prized for its non-stick and flexible characteristics, making it a preferred choice for moulds used with epoxy resin. In most cases, epoxy resin does not naturally adhere to cured silicone surfaces. This property is an advantage: it means cured silicone moulds allow for clean and easy removal of epoxy resin castings, perfect for hobbyists and professionals alike.

Silicone’s resistance to bonding is due to its unique molecular structure. For scenarios demanding a bond where typical adhesion is poor, a specialised adhesive such as “Klebfix” – Two-Component Fast Epoxy Glue 2K, 25g Syringe offers professional-grade strength for most materials—although specific compatibility with silicone is not assured. For applications where temporary mould release is needed, products from our Silicone Rubbers and silicon rubbers ranges make demoulding epoxy art effortless.

If you plan to bond epoxy resin to a silicone part (for example, repairing a silicone item with resin), note that adhesion will be a challenge and may require dedicated surface primers or alternative glues.

Choosing the Right Silicone Mould Products for Epoxy Resin Casting

For anyone making resin jewellery or casting decorative objects, silicone rubber is essential for detailed, repeatable moulds. Our silicone solutions come in easy-mix formulas and various consistencies to suit small, intricate work and larger artistic projects alike.

• “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making: A platinum-based, translucent silicone rubber delivering fast curing (3–8 hours) and a user-friendly 1:1 mixing ratio. Its formula is safe, certified, and engineered for excellent mechanical strength, ensuring reusable and long-lasting moulds for resins, plaster, and cement.
• “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B: Ideal for reproducing intricate details and undercuts on small or complex shapes, this bi-component product brings versatility to both professional foundries and crafters. It is compatible with resin, soap, and polymer pastes, supporting creative flexibility.
• “I–Gum” – Non-Toxic Silicone Putty for Mould Making: When rapid, non-toxic moulding is required, “I–Gum” offers a convenient, odourless putty solution with no need for release agents. It mixes 1:1 by hand and is suitable for resin, polyurethane, cement, and wax.

Each of these products is designed for clean separation from cured resin. Their non-stick surfaces mean that epoxy resin can be cast and easily demoulded without bonding—precisely what creatives need for detailed work!

Epoxy Resin Choices for Clear, Durable Crafting

An excellent finish starts with a high-quality resin. Both “Icrystal” – Clear Epoxy Resin – Odourless Formula – Up to 1.5cm and “ICreation” – Fast Epoxy Resin, 6h Demoulding, Transparent Gloss Finish offer professional clarity and smooth, self-levelling results. These resins are sought-after for table coatings, surfaces, casting objects, and jewellery making.

“Icrystal” is friendly to beginners and professionals alike, with odourless handling, a straightforward 2:1 mixing ratio, and durable, UV-protected results. If time is of the essence, “ICreation” accelerates the process, with 6-hour demoulding and a 12-hour full cure—speeding up your workflow with confidence.

It’s important to note: Epoxy resin—while compatible with silicone rubber for casting and demoulding—does not guarantee adhesion to silicone as a substrate. For most users, this is a benefit, enabling easy separation and repeat use of precision silicone moulds.

Adhesives for Challenging Bonds: When to Use Epoxy Glue

For those rare situations where you wish to bond resin to a difficult surface, a purpose-designed adhesive steps in. “Klebfix” – Two-Component Fast Epoxy Glue 2K, 25g Syringe is engineered for rapid, powerful bonding on plastics, glass, metals, wood and more—delivering professional results in just 5 minutes. While its compatibility with silicone is not explicitly guaranteed, it remains an exceptional choice for other demanding repair jobs where conventional resins or glues are insufficient.

Explore our full range of Multipurpose Epoxy Resins for further adhesive options tailored to your specific needs.

Silicone Moulds and Epoxy: Tips for Best Results

Working with silicone moulds and epoxy resin can be intuitive and rewarding when following a few practical guidelines:

• Always ensure your silicone mould is clean and dust-free before pouring resin. This supports a flawless surface finish on your final piece.
• Most modern silicone rubbers, including “Pure Mould” and “Liquid Mould”, are non-stick to epoxy, requiring no separate release agent.
• If you ever wish for a permanent bond to silicone (for example, for a repair or composite construction), surface preparation and specialty adhesives may be necessary—but are generally not required or recommended for routine resin casting.

If you’re after reliable, detailed, and reusable silicone moulds, browse the Silicone Rubbers and Silicon Rubbers category in our shop.

Comparison Table: Epoxy Resin, Silicone Moulds, and Adhesives