Question 1

Diameters from 5 to 350 mm and custom lengths are offered. Can you provide non-standard sizes or cut per drawings?

Accepted Answer

Yes. We support standard and non-standard diameters, with lengths cut to order. We accept PDF/CAD 2D drawings and IGES/STEP 3D models for machining or direct finished parts.

Question 2

What is the difference between pure PTFE and filled reinforced versions regarding FDA and food contact?

Accepted Answer

The pure PTFE version complies with FDA 21 CFR 177.1550 for food, pharmaceutical, and potable water contact. Filled versions (e.g., carbon fiber, glass fiber, graphite, bronze) are not FDA-compliant and are for industrial use only. Please select based on your application.

Question 3

What fillers can be added, and how do they affect low/high temperature and mechanical performance?

Accepted Answer

Fillers include carbon fiber, glass fiber, graphite, molybdenum disulfide, bronze, and ceramics. Carbon fiber and glass fiber improve creep resistance and rigidity; graphite and MoS2 reduce friction; bronze enhances heat dissipation; ceramics raise thermal stability. Fillers alter thermal expansion and chemical resistance, so formulations should be customized to your conditions.

Question 4

How does this rod perform in terms of chemical resistance? Does it still resist corrosion at high temperatures?

Accepted Answer

Pure PTFE resists almost all strong acids, bases, and organic solvents, and its chemical inertness remains stable at elevated temperatures. Filled versions' chemical resistance depends on the filler, typically suitable for oils, water, and hydrocarbons, but strong oxidizing acids should be avoided. Provide your specific media and temperature for compatibility confirmation.

Question 5

Is this rod easy to machine? Can it be directly made into seals, bushings, or insulators?

Accepted Answer

Very easy. PTFE rod can be turned, milled, drilled, tapped, and slotted with dimensional stability and minimal deformation. We accept PDF/CAD 2D drawings and IGES/STEP 3D models, machining precision parts and delivering finished components directly.

Question 6

Under high temperature and sustained compression, will pure PTFE cold flow? How can creep resistance be improved?

Accepted Answer

Pure PTFE tends to cold flow under sustained pressure and elevated temperature. If FDA compliance is required, use structural support or reduce continuous pressure. If non-FDA filled grades are acceptable, carbon fiber or glass fiber filling significantly reduces compression set and improves creep resistance at high temperatures.

Question 7

Do you provide FDA, MSDS, ROHS, and REACH documentation?

Accepted Answer

Pure PTFE comes with FDA compliance statements, MSDS, ROHS, and REACH documents. Filled versions can be supplied with MSDS, ROHS, and REACH, but are not FDA-compliant. Documents are provided with shipments or upon request.

Question 8

For bulk orders, how do you ensure quality and dimensional consistency?

Accepted Answer

We use controlled raw material compounding and extrusion or molding processes. Each batch is inspected for density, hardness, tensile strength, diameter, and length tolerances. Retained samples and lot traceability records ensure stable supply for long-term reliable use in low/high temperature applications.

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Water Absorption

Model NO.

Contraction Percentage

Tensile Strength

Density

Elongation at Break

Compression Strength

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