Qorpak CAP-00544 Thermoset Ribbed Cap with F217 PTFE Liner, 8-425 Neck Finish (Case of 500)

These caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. They also provide the most consistent adherence to close dimensional tolerances. Ideal for pharmaceutical applications. Thermoset closures cannot be remelted after they are formed. Common resins include urea, phenolic and melamine. F217 and Teflon lined caps - Foam backed Teflon PTFE liners resist attack from virtually all chemicals at room temperature and provides resilience for a tight seal with a low moisture transmission rate. F217 has a low density foam core between two solid layers of LDPE. Uses include: Analytical lab samples, high purity chemicals, strong acids, solvents, environmental samples, pharmaceuticals, and diagnostic reagents. The color green easily identifies the Teflon liner system. A size 8-425 cap has a diameter of 8mm and fits a container with a 425 GPI thread finish. Case includes 5 bags of 100 caps each.