Pentron - Stomaflex Gel Catalyst - Stomaflex Activator 10 PcsStomaflex Gel Catalyst The catalyst in paste form used in the curing of silicone materials is used together with Stomaflex Putty and Stomaflex Light. Features & Benefits: Easy dosing and short mixing time: gel catalyst form. Easy control: homogeneous mixing with colored catalyst. Outstanding detail: even in damp areas. Excellent quality in every measure. See even the thinnest edges: superior results even in hard to reach areas. Contents: Stomaflex Gel