Description
Product Overview
The AMTAST PTFE Membrane Disc Filter is engineered from expanded polytetrafluoroethylene (ePTFE), a material celebrated for its exceptional chemical compatibility and resistance to harsh environments. Each disc measures 47 mm in diameter and features a precise 0.22 µm pore size, delivering reliable hydrophobic filtration that effectively separates particles from liquids while preventing water ingress. The disc design enables easy integration into standard laboratory filtration setups, and the pack of 50 ensures you have ample supply for routine testing, method development, and high‑throughput workflows. The membrane’s uniform pore distribution guarantees consistent performance across each filter, reducing variability and enhancing reproducibility in critical analytical procedures.
![[Product front view showing all components]](https://www.foodprep.store/wp-content/uploads/2026/07/8062823cf2944c29b777fb59be4ce144.jpg)
Usage
These PTFE disc filters excel in a variety of laboratory and industrial scenarios. They are particularly suited for venting applications, gas and air filtration, and the purification of solvents, acids, and other aggressive chemicals where traditional hydrophilic membranes would fail. Researchers in chemistry, biochemistry, and materials science rely on the robust chemical resistance of PTFE to protect downstream equipment from corrosive substances. The disc format also makes them ideal for use in syringe filters, vacuum filtration units, and custom filtration rigs, providing flexibility for both small‑scale sample preparation and larger batch processes. Their hydrophobic nature ensures that aqueous contaminants are excluded, preserving the integrity of non‑aqueous samples.
Why Choose Us
Choosing the AMTAST PTFE Membrane Disc Filter means selecting a product backed by rigorous quality control and a commitment to performance consistency. Each filter undergoes thorough testing for pore size accuracy, chemical resistance, and mechanical durability, ensuring that you receive a reliable component for every experiment. Our manufacturing process utilizes high‑purity ePTFE, eliminating the risk of leachable contaminants that could compromise sensitive analyses. Additionally, the pack of 50 provides cost‑effective inventory management, reducing the need for frequent re‑ordering and minimizing downtime. With AMTAST’s reputation for dependable scientific supplies, you can trust that these filters will meet the demanding standards of modern research and production environments.
Key Features
- Superior chemical compatibility thanks to expanded PTFE material
- Hydrophobic design prevents water breakthrough while allowing gas flow
- Precise 0.22 µm pore size ensures high‑resolution particle removal
- Durable 47 mm disc fits standard filtration hardware for easy setup
- Pack of 50 offers reliable stock and reduces per‑unit cost
- Backed by AMTAST quality assurance and responsive technical support
FAQ
What types of chemicals can these PTFE disc filters handle?
The filters are compatible with a wide range of solvents, acids, bases, and aggressive chemicals, including organic solvents like acetonitrile, methanol, and dichloromethane, as well as strong acids such as hydrochloric and sulfuric acid. Their ePTFE construction resists chemical attack, making them suitable for most laboratory filtration needs.
Can the filters be used for gas or air filtration?
Yes, the hydrophobic nature of the PTFE membrane makes it ideal for venting applications and the filtration of gases or air streams. The disc format allows for easy integration into gas filtration assemblies, providing effective particle capture without moisture buildup.
How should the filters be stored to maintain performance?
Store the filters in a clean, dry environment, preferably in their original packaging until use. Avoid exposure to extreme temperatures or direct sunlight, which could affect the membrane’s structural integrity. When stored properly, the filters retain their performance characteristics for an extended shelf life.
Are the filters reusable?
These PTFE disc filters are designed for single‑use applications to ensure optimal filtration efficiency and to prevent cross‑contamination. For repeated use, a new filter from the pack should be employed for each filtration cycle.
What support does AMTAST provide if I encounter an issue?
AMTAST offers dedicated technical support to assist with product selection, troubleshooting, and performance verification. Customers can contact our support team via email or phone for prompt assistance and guidance.




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