Silicone oil with low viscosity to add more fluidity in order to facilitate the pouring, also softer the silicone. Use with caution because much oil also lowers the tear strength of silicone.
In the case of Platsil Gel10, mix the oil in part A, mix the dye (if any) to the Part B and homogenize, ai then mix the 2 ingredients and pour or inject into the mold.
Net weight 450 grams (500 mls).