A Wide range of specially formulated silicone rubbers to meet different demands for spin casting of low-melt zinc alloy and tin-lead alloy. Available Size: 9", 12", 14", 16". PA, Pin color, Application: suitable for zinc alloy spin casting. Vulcanizing Temperature: 165 degree C Vulcanizing time: 60mins. Shore Hardness after vulcanizing: 75 Tear-resistant strength: 98Mpa Elongation: 32% highest heat-resistance (10 secs):750 degree C GA, Green color, Application: suitable for tin-lead alloy spin casting of flat parts Vulcanizing temperature: 150-165 degree C Vulcanizing time: 60 mins. Shore Hardness after vulcanizing: 65 Tear-resistant strength: 80Mpa Elongation: 58% highest heat-resistance (10 secs):500 degree C BA, Blue color, Application: suitable for tin-lead alloy spin casting of miniature figurines, photo frame etc. Vulcanizing Temperature: 165 degree C Vulcanizing time: 60 mins. Shore Hardness after vulcanizing: 70 Tear-resistant strength: 95Mpa Elongation: 72% highest heat-resistance (10 secs):500 degree C YB, yellor color, Specially developed cheaper silicon rubber, mainly used to reduce cost, half or 1/3 thick of the mold, not directly contact alloy.