When it comes to manufacturing a product, choosing the right type of material is crucial. This involves carefully considering the intended use of the product, the cost of production, and regulatory requirements that need to be met. With numerous options available it can be challenging to determine the most appropriate choice.
Silicone and thermoplastic elastomers (TPEs) are two popular options among the different materials available in the healthcare, pet, and consumer industries. Both materials have unique qualities that make them suitable for various applications. To determine which material is best suited for your product, let's compare the properties and features of silicone and TPEs.
Silicone is a popular material used for manufacturing products. It has a smooth, rubber-like texture, is naturally hypoallergenic, odorless, and is highly durable, maintaining its properties even after prolonged repetitive usage. Due to its food-safe properties and ability to meet FDA and USP Class VI requirements, it’s a popular material for use in food and beverage applications and medical molding products. Silicone is available in a range of durometers on the Shore A scale, with a softer range of 3 to 80 and a lower "sweet spot" of 50. It bonds strongly with other silicones when overmolding and has low molding pressures. Silicone may contain ingredients that are designed to impart specific properties, such as pigments for custom colors and additives that control cure speeds. To promote product safety, designers can specify food-grade or medical-grade silicones that meet standards from the U.S. Food and Drug Administration (FDA) and the U.S. Pharmacopeia (USP).
Thermoplastic elastomers (TPEs) are another material used for manufacturing a wide range of products. TPEs are similar to silicones in many ways, including low extractable levels, easy-to-clean surfaces, and flexibility. TPEs can be melted and reprocessed multiple times, making them a more sustainable choice. They also offer the advantage of being easier to work with in overmolding applications, as they bond well with most common plastics. TPEs are available in a wider range of hardness levels but may lose their properties when subjected to repetitive usage, harsh conditions, and chemicals.
When choosing between silicone and TPEs, it is important to consider your specific needs. Both materials have unique advantages and drawbacks. Ultimately, we recommend seeking assistance from suppliers and molders to make an informed decision, as the material selected can significantly impact your product line. Contact us to discuss your products and ask any silicone vs TPEs questions that you may have.