Hi,
I’m formulating a tinted lip gloss and having trouble dispersing Silica Dimethyl Silylate in the formula. It’s 1% in the formula to increase viscosity & provide suspension for the D&C pigments.
I made a tiny test batch using my norpro mini mixer but it incorporated too much tiny air bubbles that won’t go away. The result also appears lumpy and not smooth. I haven’t tried dispersing it using my Overhead stirrer though because it was a small test batch. I need advice on the correct way to disperse Silica Dimethyl Silylate in oil before I’m going to try using my Overhead stirrer. Would you suggest a propeller blade attachment or saw tooth/dirpersion disc attachment?
I read that it needs very high shear like a rotor stator Homogenizer to completely disperse but there’s a lip gloss sample formulation from Sensient that calls for 3.5% Silica Dimethyl Silylate where the instruction says to mix in a propeller mixer. Any thoughts?
Thank you!