The proper way to apply a release agent while making a silicone rubber mold

1) Apply a light mist coating over the entire surface of the model and surrounding forms (any surface that will come in contact with the rubber). Do not over-apply!

2) Use a clean paintbrush to brush the release agent over the surface of the model and surrounding forms. Make sure that intricate detail, undercuts and hard-to-reach areas are coated as thoroughly as possible.

3) Apply another light mist coating and let dry for 10 minutes.

Do not soak your model with release agent. Over-applying release agent will result in tiny bubbles on the working surface of your finished mold (pin-holing) and will be reflected in castings taken from the mold. This is undesirable.

Once "sealed" and "released," our model is now prepared. The next step is to measure, mix and pour the mold rubber over our model.