Mix Ratios

 *Mix Ratios apply only to the specified Silpak products used in class

RTV (Econosil-25 Silicone Rubber)

10 parts A-side by weight (A-side is the white goopy material)
1 part B-side by weight (B-side is the blue catalyst)

Urethane Plastic (Sil-Cast White)

1 part A-side by weight
1 part B-side by weight