Products

Semi-finished Products & Finished Parts Made of PTFE

Manufactured to Fit Precisely

Our products are developed based on your requirements. Whether a single part, a small batch, or series production, we manufacture semi-finished products and finished parts precisely tailored to your application.

Every application places specific demands on mechanical properties, wear behavior, chemical resistance, or temperature stability. By using different fillers in a targeted manner and developing customer-specific compounds, we tailor PTFE and other fluoropolymers precisely to these requirements and develop the ideal product for you.

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Production of Semi-finished Products

PTFE Semi-finished Products

Semi-finished products you can obtain from us:

Pressed semi-finished products:

pressed sheets
pressed rods
pressed tubes

Ram-extruded semi-finished products:

ram-extruded rods
ram-extruded tubes

Films, sheets, hoses, sealing tapes:

skived PTFE films and sheets
PTFE glass fabric films
PTFE hoses
PTFE sealing tape
PTFE sealing cord
PTFE flat sealing tape, single-sided self-adhesive

Semi-finished Product Range

Production of Finished Parts

Finished Parts Made of PTFE

Parts manufactured specifically for you:

Seals:

PTFE O-rings
PTFE-encapsulated elastomer O-rings
Flat gaskets made of PTFE and modified PTFE (incl. DyneonTM TFMTM)
PTFE-encapsulated flat gaskets
Seals for valves and ball valves
Lip rings
Cap and cup seals
Shaft seals
Flange seals
Roof boots
Piston guide rings and bands
Piston and rod seals
Back-up rings

Engineering components:

PTFE bellows as
- compensators
- spindle covers
- valve bellows
- pump bellows
Ball seats and ball valve linings
Thrust washers and plain bearing bushings
Insulating elements
Special drawing parts for your application

Finished Parts Range

The right plastic for your application

Finished Parts Made of High-performance Plastics

You should receive the most effective solution: Some applications require parts to be manufactured from engineering plastics or other high-performance plastics for technical or economic reasons. We also offer this option, while leveraging our specialization in plastic machining and many years of materials expertise.

Please enclose a STEP file and a drawing in PDF format with your inquiry.

Fluoropolymers and Their Properties

Source: Saechtling: Kunststofftaschenbuch, 25th edition, p. 314

Properties	Unit	PTFE	PVDF	PCTFE	EFTE
Max. continuous service temperature	°C	+260	+150	+170 to +180	+150
Embrittlement below	°C	-200	-60	-40	-180
Density	g/cm₃	2.13 – 2.23	1.76 – 1.78	2.07 – 2.12	1.67 – 1.75
Tensile strength	N/mm₂	20 – 40	40 – 60	30 – 40	35 – 45
Elongation at break	%	140 – 400	25 – 400	175	200 – 500
E-modulus (tension)	N/mm₂	350 – 750	1000 – 3000	1300	~1000
Shore hardness D	–	55 – 60	77 – 82	73 – 79	67 – 73
Linear coefficient of thermal expansion	10_-5 K_-1	16	10	5	13
20 – 100°C
Thermal conductivity at 20°C	W / (mK)	0,24	0,17	0,26	0,24
Oxygen index	Vol – %O²	95	44 – 48	94	32 – 37
Specific volume resistivity	Ω·cm	10₁₈	10₁₄	10₁₅	10₁₆
Dielectric strength	kV/mm	55	–	30 – 40	35 – 45
Surface resistivity	Ω	10₁₇	–	175	200 – 500
Water absorption (comparative value 24 h)	%	0	0,03	0	0,02
Swelling agents	–	none within the service temperature range	Ketones, esters at higher temperatures	some chlorinated hydrocarbons	some halogenated solvents at elevated temperatures
Chemically attacked by	–	molten or dissolved alkali metal, F, FCl₃ at higher temperature	fuming HNO₃ and H₂SO₄, amines, pyridines	similar to PTFE	fuming HNO₃ and H₂SO₄, amines, pyridines

Custom Development

Project Execution in Nünchritz

Whether increased compressive strength, improved sliding properties, reduced friction, electrical conductivity, or optimized wear protection—by combining suitable material components, tailored material solutions are created. This also enables demanding or previously borderline applications to be implemented reliably.

With our all-round service, we support you from the initial analysis through to the tested, ready-to-use product.

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