Question 1

What thickness range is available for these slabs, and can you cut custom shapes?

Accepted Answer

We offer thickness from 0.5 mm up to 100 mm. Length and width are fully customizable - you can order standard sheets or provide a 2D/3D drawing for precision cutting into washers, strips, or complex profiles.

Question 2

Can the filler ratio be adjusted for my specific application?

Accepted Answer

Yes. The filler content (typically 5-40% by weight) can be tailored to balance properties such as wear resistance, friction, or thermal conductivity. Our engineers will recommend the optimal ratio based on your pressure, speed, temperature, and media.

Question 3

Which filler should I choose for high-load, low-speed oscillating movements without lubrication?

Accepted Answer

Graphite or MoS2 are the best choices. They offer the lowest dynamic friction coefficients (0.05-0.10) and provide solid boundary lubrication, eliminating stick-slip and reducing start-up torque.

Question 4

I need electrical insulation - which type should I avoid, and which is safe?

Accepted Answer

Only virgin PTFE retains high dielectric strength (60-100 kV/mm). Any filler, especially carbon or copper, drastically reduces insulation. If moderate insulation is acceptable, glass fiber or MoS2 (15-30 kV/mm) can be considered, but never use carbon or copper for electrical components.

Question 5

What about chemical resistance - do fillers affect it?

Accepted Answer

PTFE itself is chemically inert, but fillers may be attacked by certain aggressive media. Glass fiber is vulnerable to strong alkalis and hydrofluoric acid; copper powder dissolves in oxidizing acids (e.g., nitric acid). We can advise on compatibility and adjust the formulation or recommend pure PTFE when full chemical resistance is mandatory.

Question 6

Can these slabs be machined or post-processed easily?

Accepted Answer

Yes. All slabs can be turned, milled, drilled, or punched. Filled grades are generally stiffer and less prone to burring, making them easier to achieve tight tolerances. We also offer cutting services to supply near-net shapes directly from your drawings.

Question 7

Is there a minimum order quantity for custom thickness or filler ratio?

Accepted Answer

No. We support small-volume trials and single-piece orders for prototype validation. Even sample batches receive full material test reports and batch traceability.

Question 8

How do I choose between glass fiber and carbon fiber reinforcement?

Accepted Answer

Glass fiber gives better dimensional stability and is cost-effective, but it has higher friction and lower thermal conductivity. Carbon fiber offers superior wear resistance, creep resistance, and heat dissipation, but it is more expensive and completely destroys electrical insulation. Use glass for general structural parts, carbon for heavy-duty dry-running bearings and guides.

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