These rubber materials are generally:
Let’s take a look at five of the best FDA-grade rubber materials:
EPDM Rubber is used in applications that demand both flexibility and ruggedness. Made from odorless and tasteless compounds, it can be wisely used in both specialty and general purpose applications. It is ideal for temperature ranges of -40°F to 250°F.
Uses: Commonly used in the food and beverage industry, automotive products and HVAC parts.
Fluorocarbon combines high temperature resistance with great chemical resistance. It’s nearly invisible under water, and also doesn’t absorb it. Working temperature range is considered to be -15°F to 440°F.
Uses: Commonly used in aircraft engines and seals for automotive fuel handling systems. These O-Rings should be used in mechanical devices requiring optimum resistance to elevated temperatures and fluids.
Neoprene has a smooth finish, good resistance to abrasion and repels oily and greasy food products. It has great resistance to petroleum oils, good resistance to ozone, sunlight and oxygen aging. It’s one of the earliest synthetic materials to be developed as an oil-resistant substitite for natural rubber.
Uses: Neoprene is widely accepted as a preferred material for refrigeration seals and has several uses in the transportation field. In the automotive world, it’s used for many under-the-hood and underbody parts that require a reasonably priced polymer with great balance of performance properties.
Nitrile is the seal industry’s most widely used and economical elastomer, which combines excellent resistance to petroleum-based oils and fuels, hydraulic fluids and high abrasion resistance. With a hardness of 40 to 90 Shore A, standard compounds range from -40°F to 257°F.
Uses: Oil-resistant applications of all types, off-road equipment and low-temperature military uses. Nitrile performs well in oil rigs, automotive and marine applications, aircraft hoses, seals and gaskets.
Silicone seals make up about 30 percent of Apple Rubber’s business. This rubber has thermal stability, low chemical reactivity and low toxicity. It also has heat-resistant properties. Silicone allows for longer service life and has one of the widest operating temperature ranges from -148°F to 600°F.
Uses: Using food-grade silicone is a great way to ensure that foreign substances will not contaminate foods. Silicones are used in sealants, adhesives, lubricants, medical applications, cooking utensils and insulation.