20mm bi-metal crimp caps from SeptaSource are made of polypropylene (PP) plastic and bonded to platinum-cured silicone septa that’s easy-to-pierce.
To ensure analytical purity, we uses a proprietary bonding technology that maintains the septum’s analytical properties. In other words, our bonding process won’t add contaminants that can leach from the cap-and-septa assembly into your laboratory samples.
All our crimp septa caps are made in the USA at our Ballston Spa, New York facility. These crimp caps come in different colors and are supplied in bags of 100 or 1000. If you need a custom bonded septa cap, click here and let us know what you are looking for.
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