MYCAP® Bottle Closure Family - Aseptic Transfer System
MYCAP® closures are a one-piece, ready-to-use and single-use aseptic fluid transfer system for bottles.
Remarkably, every MYCAP® design features our secure platinum-cured silicone seal, despite a diverse range of capabilities and configurations. MYCAP® is the first truly universal closure system. MYCAP® expands capabilities, removes uncertainty and eases validation.
Explore MYCAP® Unique Technologies

A MYCAP® for Any Application
Cell Culture Expansion
Bring good aseptic technique to cell expansion. Passage and expand cultures without opening flasks, without going into the BSC, without contamination.
Sterile Media Fill & Storage
MYCAP® inlet line include 0.2µm sterilizing grade filter for simple, one-step media preparation, media fill, and other operations.
General Use & Storage
Available on huge array and variety of bottle types and sizes. There is a MYCAP® solution anywhere you use a bottle.
Download Datasheet: Bottle Assemblies
Download Datasheet: Centrifuge Tubes
MYCAP® for Glassware
Available for all common glassware closures including GL25, GL32, GL45, etc. Ideal solution for Bioreactor Feeds and reusable container applications.
Sampling Manifolds
Don’t compromise your sterile technique. MYCAP® allows sterile filling, sterile collection, and analysis of your samples. Select the container or blend of containers you need to make your sample collection reliable and safe.
Drug Substance and Drug Storage
MYCAP®’s reliable, high performance seal make it ideal for applications where container closure and aseptic connectors is priority #1. MYCAP® is available on larger carboys and bottles designed for freezing applications.
Custom Designs & Engineered Solutions
Put our designers and engineering teams to work. Design your own solution from our diverse portfolio of parts or let us help you solve your sterile filling process problem.
Unique Technology to Enhance your Operations
Platform Technology
Since all MYCAP® feature the same platinum-cured silicone closure regardless of the bottle type or cap specifications you can validate MYCAP® closure once and use it freely across the entire drug production process regardless of the application.
High Performance Closure
MYCAP has low stress-to-seal thanks to outstanding compression set and low creep properties.
Application Friendly Resins
MYCAP® silicone closure is plasticizer free, stabilizer free and has no anti-oxidants
Suitable for use from -65°C to 175°C make it an ideal closure for most biopharmaceutical applications.
Protect from Product Loss
Purpose built dip tube tip prevents suction during fluid removal. The subtle saddle shape ensures fluid removal down to the very last drop.
Direction Where you Need It
Elegantly simple design and yet remarkably effective to keep fluid inlet where its needed or dip tubes away from accessories in the bottle with the Z-Flex Articulator.
Aseptic Disconnection can’t get Simpler
…more or reliable. Cut the collar to make the disconnection and seal in one simple step.
USP 87, USP 88 | Pass |
USP 788 | Pass |
USP 85 | Pass |
USP 661 | Pass |
USP 381 | Pass |
21CFR177.2600 | Pass |
Microbial Container Closure | Pass |
Sterility (ISO11137-2) | Pass |
Autoclaveable | Yes |
Leak Testing | Lot Release |
Shelf Life | 2 Years |
Tubing Materials | Silicone, TPE (eg, C-Flex®) |
Specification are not inclusive of tubing, container or fittings. Consult Validation Guide for current material validation and testing.