- Bonded Teflon®-faced silicone liners
White, autoclavable caps have a bonded Teflon-Faced Silicone Liner making them suitable for storage and containment of volatile solvents, sensitive compounds and corrosive chemicals. The liners consist of 0.055” of Silicone and 0.005” of Teflon. They are available in convenient lab pack quantities as well as larger case packs. These closures are designed to work with EZ-ExTraction™ vials.