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DWK Life Sciences Unveils Autoclavable PTFE-Coated Silicone Liner for Extreme Environments
Jan 23,2026
January 23, 2026 – DWK Life Sciences has introduced a high-performance cap liner designed for demanding industrial and laboratory applications, expanding its DURAN® product line. The PTFE-coated, peroxide-cured silicone liner is engineered to withstand extreme temperatures and harsh chemicals, making it ideal for pharmaceuticals, chemicals, and analytical reagents.
Key technical specifications:
- Temperature resistance: Autoclavable at 121-134°C (wet steam) and usable up to 180°C (dry heat)
- Chemical compatibility: Resistant to acids, bases, and organic solvents via PTFE coating
- Seal reliability: Forms a tight, drip-free seal with GL 14 screw caps, preventing contamination
- Compliance: Meets international food contact and pharmaceutical standards (FDA, USP Class VI)
The liner is integrated into DWK’s red PBT (polybutylene terephthalate) caps, offering superior thermal stability compared to polypropylene alternatives. "This solution addresses unmet needs in high-temperature sterilization processes," said a product manager at DWK. "It ensures product integrity in critical applications such as vaccine storage and chemical sampling."
Available in packs of 10, the product is now stocked in North American and European distribution centers, supporting fast delivery for industrial clients. With the global pharmaceutical packaging market growing at 6.2% CAGR, the new liner targets biotech firms, contract manufacturers, and research institutions seeking reliable sealing solutions for extreme conditions.
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