What Type of Silicone for Fish Repair?

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Repairing silicone rubber fish requires selecting the right type of silicone to restore both durability and the natural feel. A well-matched silicone ensures seamless, long-lasting repairs.

Choosing the Right Silicone

The most effective repairs are achieved with bi-component silicone products, such as casting silicones or silicone putties, that closely match the firmness of the original fish. Both liquid casting varieties and malleable putties are suitable, depending on whether you need to pour into a mould or apply directly to the surface. It is important to select a firmness (Shore hardness) that maintains the flexibility and realism of the fish.

Repair Process and Application

Begin by identifying the damaged area and preparing a clean workspace. For highly detailed or complex repairs, a liquid silicone like “Liquid Mould” Bi-Component Silicone is excellent for capturing fine details. For quick, direct fixes or sculpting, a non-toxic silicone putty such as “I–Gum” Silicone Putty can be kneaded and applied in situ. Always follow manufacturer mixing and curing instructions for best results.

When a Precise Match Matters

If the repaired area will be visible or frequently handled, aim for a silicone that closely mirrors the original’s softness and surface texture. This maintains the look and feel, ensuring your repair blends in seamlessly with the rest of the model or prop.

Related products

• "I–Gum" – Non-Toxic Silicone Putty for Mould Making
• "Liquid Mould" – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B
• "Pure Mould" – Translucent Liquid Silicone Rubber for Mould Making

Related guides

• How Do You Repair Silicone Rubber Fish

Choosing the appropriate silicone type ensures your silicone rubber fish repairs remain effective and natural. For more in-depth methods and extra guidance, return to our main fish repair hub page.