This material produces the highest quality rubber moulds with extremely fine detail and minimal shrinkage. They will produce well hundreds of castings depending on the complexity of the shape. This self releasing liquid rubber is activated by the addition of a catalyst, poured over the former and cured at room temperature. RTV25 is a medium, condensation cured silicone.

• Medium 25 Shore A hardness

• All kits supplied with catalyst

• Choose from fast or slow catalysts

Click here for instructions on silicone mould making

These products come supplied with a choice of hardeners. Click through to the main product page for choice