When selecting gasket sheets for use in food processing or food handling applications, it’s critical to prioritize materials that are safe for contact with food and compliant with food-grade regulations. Here are some gasket sheet options commonly used for sealing applications in the food industry:

1. Silicone Sheets:

   • Silicone gasket sheets are widely used in the food industry due to their excellent flexibility, temperature resistance, and compatibility with food products. Silicone is FDA (Food and Drug Administration) approved for direct food contact and does not impart taste or odor to food. Silicone gaskets are commonly used in food processing equipment, dairy processing, bakery equipment, and food packaging machinery.

2. PTFE (Polytetrafluoroethylene) Sheets:

   • PTFE gasket sheets are inert and non-toxic, making them suitable for use in food processing applications where purity is essential. PTFE is FDA approved for direct food contact and offers excellent chemical resistance to oils, acids, and other food substances. PTFE gaskets are commonly used in food processing equipment, such as pumps, valves, and mixers.

3. EPDM (Ethylene Propylene Diene Monomer) Sheets:

   • EPDM gasket sheets are often used in food and beverage applications due to their excellent water resistance and compatibility with food products. EPDM is FDA approved for use in contact with food and offers good sealing performance in a wide range of temperatures. EPDM gaskets are commonly used in food processing equipment, beverage dispensers, and food storage containers.

4. Nitrile Rubber (NBR) Sheets:

   • Nitrile rubber gasket sheets, also known as Buna-N or NBR, are suitable for sealing applications in the food industry where resistance to oils and fats is required. NBR is FDA approved for direct food contact and offers good sealing performance in food processing equipment, including pumps, motors, and conveyor systems.

5. Fluoroelastomer (FKM) Sheets:

   • Fluoroelastomer gasket sheets, such as Viton®, offer excellent chemical resistance and high-temperature performance, making them suitable for sealing applications in food processing equipment exposed to harsh chemicals and high temperatures. FKM materials may be FDA compliant for certain food contact applications.

When selecting gasket sheets for food applications, it’s essential to choose materials that comply with FDA regulations and are specifically approved for direct food contact. Additionally, it’s crucial to consider factors such as temperature resistance, chemical compatibility, and sealing performance to ensure the safety and integrity of food processing equipment and food products.