RESIN PLAY Mintsil Firm Silicone Rubber 1.1kg

MintSil™ (Firm) opaque silicone rubber is a high quality platinum (addition-cure) silicone rubber ideal for creating moulds that require firmness and stability. The silicone rubber has a temperature resistance of 200 to 220°C, making it suitable for making baking moulds.

Moulds made with opaque silicone rubber are great for spotting bubbles in clear resin castings (as bubbles are more visible on a darker surface), so you can easily pop or release them.

It has great bubble release so you can create moulds without bubbles affecting the mould cavities. It is non-toxic, food-grade, skin-safe and safe to use indoors. Cures at room temperature.

If you are looking for an opaque silicone rubber with greater flexibility, check out our MintSil (Soft) Silicone Rubber. For translucent or transparent silicone rubber, you may consider our IceSil and ClearSil range.