FDA SILICONE SANITARY GASKET FOR 1/2″ TUBE TRI-CLAMP GASKETS ARE SEALS MADE OF FDA MATERIALS ARE DESIGNED TO FIT THE GROOVES OF TRI-CLAMP TUBE FITTINGS USED PRIMARILY IN FOOD PROCESSING LINES, AS WELL AS IN THE PHARMACEUTICAL AND BIOTECH INDUSTRIES. THE UNIQUELY DESIGNED SHAPE PROVIDES A TIGHT SEAL FOR EXTREMELY HIGH PURITY, WHICH MEETS ALL THE NECESSARY STANDARDS FOR MANUFACTURERS. SILICONE HAS EXCELLENT RESISTANCE TO HIGH AND LOW TEMPERATURES AND GOOD RESISTANCE TO CHEMICALS, WATER, AND STEAM.