Seal, Silver, PTFE/Silicone

Crimp Seal Selection Guide:PTFE/Red Rubber - Medium durometer red rubber with a .015” layer of clear PTFE. Great and economical for routine analysis. Not recommended for multiple injections.PTFE/Silicone - Pure Silicone laminated with .005” of PTFE. Recommended when multiple injections are required. Resist coring and excellent resealing qualities.PTFE/Silicone/PTFE - Medium durometer silicone with .003” silicone laminated on both sides. Great for trace analysis work. Resist coring and good resealing characteristics. Use with auto samplers with blunt tip syringes.Viton® - Recommended for chlorinated solvents. Excellent chemical resistance.Polypropylene - Not resealable. For one time use only. Easily penetrated by syringes and chemical resistant.