Expanded PTFE Sheet: Versatile and High-Performance Sealing Material

SunPass Expanded PTFE Sheet is manufactured from 100% virgin PTFE fluorocarbon via a specialized physical expansion treatment.

It delivers high tensile strength, balanced flexibility and hardness, alongside outstanding chemical and thermal resistance. This makes it ideal gasket material for the most extreme operating environments. This ePTFE sheet features unlimited shelf‑life; it will not turn brittle, age or degrade during service. It meets TDK‑level sealing requirements for high‑purity electronic and semiconductor applications, stable under thermal cycling and aggressive fluid exposure.

Key Properties

‑ Raw material: 100% virgin PTFE fluorocarbon ‑ Manufacturing: Specialized physical expansion treatment ‑ Mechanical: High tensile strength, balanced flexibility and hardness ‑ Resistance: Excellent chemical resistance & thermal resistance ‑ Aging: Unlimited shelf‑life, non‑brittle, non‑aging, no service‑life deterioration ‑ Compatibility: TDK‑compatible for high‑purity electronic & semiconductor sealing ‑ Main use: Gasket blank material for extreme‑condition static sealing

Frequently Asked Questions

Q1: What is SunPass Expanded PTFE Sheet made of? A: It is produced from 100% virgin PTFE fluorocarbon with a specialized physical expansion treatment process.

Q2: Does expanded PTFE sheet age or become brittle in storage or service? A: No. It has unlimited shelf‑life and will not turn brittle, age or deteriorate under normal application conditions.

Q3: Is this expanded PTFE sheet compatible with TDK‑standard semiconductor equipment? A: Yes. It satisfies TDK‑level high‑purity sealing requirements, suitable for semiconductor fab and high‑precision electronic device sealing.

Q4: Can expanded PTFE sheet be used in AI liquid‑cooling systems? A: Yes. It works for AI server immersion cooling and GPU hardware sealing. Good chemical and thermal‑cycling resistance ensures stable performance against coolant media and temperature fluctuation.

Q5: What is the main benefit for semiconductor clean‑room use? A: The material delivers low‑contamination performance, reducing particle release risk to safeguard chip manufacturing yield.

Q6: Are custom sizes available? A: Yes, SUNPASS supports custom thickness and cut‑to‑size production according to customer drawings.