Materials for Molds:Silicone Rubber: Silicone molds are flexible, easy to use, and suitable for casting various materials such as resins, concrete, and low-temperature metals.Polyurethane: Polyurethane molds are durable, long-lasting, and can be used for a wide range of casting materials. They are often used in industrial applications.Plaster: Plaster molds are inexpensive and commonly used for ceramics and pottery. They are easy to make but less durable than some other materials.Aluminum: Aluminum molds are used for die-casting processes and are suitable for high-temperature applications.Steel: Steel molds are extremely durable and can withstand high temperatures and pressure. They are often used in industrial processes like injection molding.