Silicone molds and syringe injection products made by automatic injection molding often need to withstand frequent use, friction and bending. Ordinary materials either have poor toughness and are easy to break, or have low tensile strength and are easy to crack, which greatly shortens the service life of the products. A special liquid silicone for automatic injection molding, with ultra-high toughness + high-performance mechanical properties, combined with dual hardness for precise adaptation, the products made are not easy to break when stretched, super tear-resistant and durable, and have become a reliable choice for the production of molds and injection products.
Its mechanical properties are among the outstanding levels in the industry. The elongation at break of both models after curing is ≥500%, which means the products can withstand significant stretching and bending. Even for silicone molds that need frequent opening and closing, or syringe injection products that are used repeatedly, they can quickly return to their original shape after bending and stretching without creases or cracks. The tear strength is ≥20KN/m, with full tear and wear resistance, which can resist friction loss in daily use, greatly increasing the number of mold turns and significantly enhancing the durability of injection products.
The tensile strength is also excellent. The 3G30-305 model is ≥6MPa, and the 3G30-405 model is ≥7MPa. The formed products have both toughness and stiffness, and will not deform or collapse due to insufficient strength. The dual hardness design can also accurately match the needs of different products: the soft model of 28-32HA is flexible in texture, suitable for making silicone molds with high fit requirements and soft injection products; the medium hardness model of 39-42HA has better stiffness, suitable for making molds and injection products that require a certain degree of support, balancing use feel and structural stability.
After curing, it can still maintain a smooth feel. The surface of the product is non-sticky and free of oil stains. The silicone mold does not stick to the mold during demolding, and the use experience of injection products is more comfortable. As a platinum-catalyzed addition silicone, it has good chemical stability, and its performance is not easy to age after molding, which can maintain stable mechanical properties for a long time, further extending the service life of the products. From the production of various precision silicone molds to the mass production of syringe injection products for different purposes, this silicone can ensure the product quality with the advantages of high toughness and durability.
Regarding liquid silicone rubber, please refer to our website for details:
IOTA Liquid Silicone Rubber