The Alumilite Quick-Set Rubber 0.45Kg from the casting materials range provides a high quality quick-setting rubber mould making material. Alumilite Quick Set RTV Silicon Rubber allows fast reproduction of almost any master pattern. Unlike most rubber mold materials, this unique material has a 30 minute working time and cures in just 4 hours. Size: 1lb (0.45kg) pack Includes catalyst Manufacturer: Alumilite Model: 20001 Quick-Set Rubber 0.45Kg