Molded closures

Our closures systems are manufactured from high-purity, biopharmaceutical-grade, platinum-cured silicone elastomers. These components and assemblies provide an aseptic seal for handling various highly sensitive fluids in biopharmaceutical applications. The technology of these products ensure an unobstructed fluid path. Our closure systems allow you to easily retrofit your existing glass and plastic carboys, glass solution and media bottles, and stainless steel vessels for aseptic fluid transfer, sampling or sealing. One-piece construction eliminates product loss and contamination.

Typical applications


  • Fluids transfer
  • Glass and plastic carboys
  • Media bottles
  • Production applications
  • Laboratory equipment

Features and benefits


  • Provides complete aseptic container closures
  • Silicone closure insert with or without silicone tubing or sanitary dip tubes
  • Available in silicone or TPE
  • Autoclavable and sterilisable
  • Non cytotoxic
  • Meets USP Class VI, FDA- grade requirements – BPA Free
  • Made in the USA

Let us take care of your custom single-use assemblies.

Working closely with your team, we design and manufacture custom Single-Use assemblies – completely brand-independent – recognized for their reliability. Looking to optimise your process? Get in touch!

Photograph of a production team assembling products in a production room