Frequently Asked Questions

Expanded PTFE (ePTFE) operates from -260°C to +260°C continuously. It maintains its mechanical properties and sealability across this entire range, making it suitable for both cryogenic applications (liquid gas, LNG) and high-temperature steam systems. Peak temperature for short-term exposure can reach +300°C.

PTFE is one of the most chemically inert materials known. It resists virtually all chemicals including acids, alkalis, solvents, and aggressive industrial fluids. The only exceptions are molten alkali metals (sodium, potassium) and elemental fluorine at high temperatures above 200°C.

Quality ePTFE gaskets can last 5-15+ years in service, depending on application conditions. Unlike standard PTFE, ePTFE resists cold flow and maintains its seal under thermal cycling and vibration. In many cases, ePTFE gaskets outlast the equipment they seal. Actual service life depends on temperature, pressure, chemical exposure, and flange condition.

ePTFE sheet is raw material (up to 1520×1520mm) that you or a gasket shop cut into custom shapes. A custom-cut ePTFE gasket is a finished part made to your exact dimensions and flange specifications. We offer both cut-to-size sheets and finished gaskets. Tolerances are confirmed against your drawing.

Yes, but specific ePTFE grades designed for oxygen service must be used. Standard ePTFE may contain contaminants that are hazardous in high-pressure oxygen environments. We offer oxygen-compatible ePTFE sheets and gaskets rated for O2 service. Please provide your operating pressure and temperature when inquiring.

Yes. We accept PDF, CAD (SolidWorks, AutoCAD, STEP, IGES), and hand-drawn sketches. Tolerances are confirmed against your drawing. MOQ and lead time are confirmed with each quote. Samples are available.

MOQ is confirmed with each quote.

We CNC machine a wide range of engineering plastics: Virgin PTFE, Glass-filled PTFE, Carbon-filled PTFE, Carbon Fiber-filled PTFE, Graphite-filled PTFE, UHMWPE, PEEK, PCTFE, PVDF, Nylon (PA6/PA66), Delrin/POM (Acetal), PET, PC, and more. Contact us with your material requirements and we'll confirm availability.

Machined to customer drawings; tolerances negotiable. Complex geometries, threads, undercuts, and thin-walled sections are supported. Samples are available.

Samples are available.

Yes. We ship globally via DHL, FedEx, UPS, and sea freight. Bulk orders are shipped by sea freight or air cargo. All shipments include tracking and insurance. Door-to-door delivery available in most countries. Delivery time is confirmed with each quote.

For new customers, we typically accept T/T (bank wire) and PayPal. For established customers, we offer L/C at sight and credit terms (up to 60 days for qualified buyers). All payments are processed in USD.

MOQ and lead time are confirmed with each quote.

Yes. We offer neutral packaging as standard. Custom packaging with your logo, part numbers, and documentation is available for orders over $500. Samples are available.