Materials
Silicone PTFE septa are typically made of a combination of silicone and polytetrafluoroethylene (PTFE). The silicone provides flexibility and a good seal, while the PTFE layer offers chemical resistance and low adsorption properties.
Precautions for Use
- Check the compatibility of the septa with your samples and solvents. Ensure that they are resistant to the chemicals present in your samples to avoid contamination or degradation.
- Inspect the septa for any damage or defects before use. Damaged septa may not provide a proper seal and can lead to sample loss or inaccurate results.
- Use the correct size and type of septa for your injection vials. Incorrectly sized septa may not fit properly and can affect the seal.
- Avoid over-tightening the caps on vials with septa. Excessive pressure can damage the septa and compromise the seal.
- Store septa in a clean and dry place to prevent contamination and maintain their integrity.
- Replace septa regularly, especially if they show signs of wear or degradation. Old or damaged septa can affect the performance of your injection vials and lead to inaccurate results.
The production process of silicone ptfe septa usually includes the following steps:
- Raw material preparation: Select high-quality PTFE silicone material and ensure that it meets relevant standards and requirements. Other auxiliary materials such as vulcanizing agents, accelerators, etc. may need to be prepared as needed.
- Mixing: Mix PTFE silicone material with other auxiliary materials to obtain a uniform mixture. Temperature and time need to be controlled during the mixing process to ensure the performance and quality of the material.
- Molding: Place the mixed material into a mold for molding. The molding method can be selected according to the requirements and shape of the product, such as compression molding, injection molding, etc. During the molding process, it is necessary to control pressure, temperature, and time to ensure the dimensional accuracy and performance of the product.
- Sulfurization: Place the formed product into a vulcanization furnace for vulcanization treatment. Temperature and time need to be controlled during the vulcanization process to ensure the performance and quality of the product. The vulcanized product has better heat resistance, cold resistance, and corrosion resistance.
- Post treatment: Post treatment of vulcanized products, such as trimming, polishing, cleaning, etc., to remove burrs and impurities on the surface of the product and improve its appearance quality.
- Inspection and packaging: Inspect the post processed products, such as size inspection, performance inspection, etc., to ensure that the products meet relevant standards and requirements. After passing the inspection, the product is packaged to protect it from damage during transportation and storage.
It should be noted that the production processes of different manufacturers may vary, and the specific production processes need to be adjusted according to the requirements of the product and the actual situation of the manufacturer.
Septa Size list
Factroy Information
Rufluor has 10 clean production lines for PTFE silicone composite gaskets, as well as a gasket and cover composite production line and a cover and gasket assembly production line. Provide customers with a complete product series, including Sample vials from 1ML to 2000ML, cap pads from 4mm to 55mm in diameter, and a full range of syringe filters.
It has been OEMed for many well-known scientific instrument companies at home and abroad. They come from pharmaceutical, life science, chemistry, technology, food processing and other industries. At the same time, we also have customers from universities, research institutes, government agencies, and environmental testing agencies, etc. The quality is trustworthy.
Package
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