How to Solve Chip Adhesion in Aluminum CNC Machining
Learn how to solve chip adhesion in aluminum CNC machining by optimizing cutting speed, depth of cut, and coolant, plus tool selection for better surf…
Corrosion-proof and low-friction — the guardian of extreme environments
PTFE (polytetrafluoroethylene, trademark Teflon) has an extremely wide operating temperature range (-200°C to +260°C), is resistant to almost all chemical media and solvents, and has a friction coefficient as low as 0.04, one of the lowest among solid materials.
PTFE is relatively soft and prone to creep; machining requires sharp tools and low-stress clamping to control deformation. Through annealing to eliminate internal stress and using symmetrical layered material removal with multiple precision passes, batch part dimensional consistency can be stably maintained within ±0.01mm.
PTFE is non-stick, water-absorption resistant, and offers excellent electrical insulation, widely used in chemical seals, pump and valve parts, bearing slides, insulators and food/pharmaceutical equipment. We specialize in batch production, 100 pcs MOQ, batch lead time 15-25 days.
The following table lists typical mechanical, thermal, and physical properties for this material. Actual values may vary by grade and temper.
| Property | Value | Unit |
|---|
We stock multiple grades for different application needs. Each grade offers distinct properties optimised for specific uses — click to view detailed specifications, machining advice and typical applications.
Unfilled virgin PTFE with the highest chemical purity and dielectric performance, for food, medical and high-purity chemical service.
View Details Glass-FilledGlass fibre significantly improves wear and creep resistance for load-bearing wear parts.
View Details Carbon-FilledCarbon filling raises wear and creep resistance while retaining self-lubrication, ideal for dry-running conditions.
View Details Bronze-FilledBronze filling delivers the highest compressive strength and thermal conductivity for high-load, high-speed duty.
View Details Graphite-FilledGraphite further lowers the friction coefficient, suited to soft mating surfaces requiring minimal drag.
View Details Modified GradeModified PTFE reduces porosity and cold flow and welds better, for welded or continuously loaded parts.
View DetailsA selection of parts machined from this material.
This material is widely used across multiple industries for various applications, from precision prototypes to end-use production parts.
Surgical instruments, housings
Structural brackets, panels
Engine components, housings
Heat sinks, enclosures
Motor mounts, brackets
Fixtures, jigs, tooling
Frames, handles, cases
Fittings, valves, hardware
| Finish Type | Description | Ra (typical) |
|---|
The questions engineers ask most about machining, surface quality and selecting this material.
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