Flexible Durable Liquid Silicone for Stone/Cement Mould Making Rubber Silicone. High Durability & Flexibility: Excellent resistance to heat, deformation, acid, alkali, and aging for long-lasting performance. Low Shrinkage Rate: Tin cure series 0.2% and platinum cure series 0.1% shrinkage ensure fine detail reproduction. Food Grade Safety: Environmentally friendly, odorless, and non-toxic silicone suitable for various applications. Long Shelf Life: 18 months shelf life when stored in cool, dry places in original unopened packages. Fast Delivery: Delivery within 4-6 days after payment confirmation is confirmed. High Duplication Count: Supports 50 to 1000 duplication times depending on product size and usage. Professional R&D Support: Dedicated team of 2 R&D engineers and professional QC for quality control.