Advanced Engineering Plastics

Polyetheretherketone (PEEK)
The KETRON PEEK family of materials is based on polyetheretherketone resin. This semi-crystalline advanced material exhibits a unique combination of high mechanical properties, temperature resistance and excellent chemical resistance making it the most popular advanced plastics material.

Main characteristics: 
 •  Very high max. allowable service temperature in air (250C continuously, upto 310C for short periods )
 •  High mechanical strength, stiffness and creep resistance, also at elevated temperatures
 •  Excellent chemical and hydrolysis resistance 
 •  Excellent wear and frictional behaviour (particularly KETRON PEEK-HPV and PEEK –CA30)
 •  Very good dimensional stability 
 •  Inherent low flammability and very low levels of smoke evolution during combustion
 •  Good electrical insulating and dielectric properties (except for KETRON PEEK- HPV and PEEK- CA30)
 •  Excellent resistance against high energy radiation (gamma and X-rays)

All four KETRON PEEK grades are based on VICTREX, PEEK polymers:
KETRON PEEK -1000 (PEEK) natural (brownish grey)/ black
KETRON PEEK-1000 stock shapes are produced from virgin polyetheretherketone resin and offer the highest tough ness and impact strength of all KETRON PEEK grades.The composition of the raw materials used for the production of the KETRON PEEK 1000 natural stock shapes complies with the directives of the European Union and with the American FDA regulations concerning plastic materials intended to come into contact with foodstuffs. These features, added to its excellent sterilisbility by means of steam, dry heat, ethylene oxide and gamma irradiation, make this grade very popular in medical*, pharmaceutical and food processing industries.

KETRON PEEK-HPV (PEEK +CF+PTFE +graphite)(black)
The addition of carbon fibres, PTFE and graphite to virgin PEEK results in a KETRON PEEK “Bearing Grade”. Its excellent tribological properties (low friction, long wear and high Pressure –Velocity capabilities) make this grade especially suited for bearing and wear applications. 

KETRON PEEK-GF30(PEEK-GF30)natural (brownish grey)
This 30% glass fibre feinforced grade offers higher stiffness and creep resistance than KETRON PEEK-1000 and has a much better dimensional stability. KETRON PEEK –GF30 is very appropriate for structural parts carrying high static loads for long periods of time at elevated temperatures. Its suitability for sliding parts, however, is to be carefully examined since the glass fibres tend to abrade the mating surface.

KETRON PEEK –CA30(PEEK-CF30)(black)
This 30% carbon fibre reinforced grade combines even higher stiffness, mechanical strength and creep resistance than KETRON PEEK GF30 with an optimum wear resistance. Moreover, the carbon fibres provide 3.5 times higher thermal conductivity than virgin PEEK, dissipating heat from the bearing surface faster. 

Polyamide-imide (PAI)
The TORLON PAI grades, combining excellent retention of mechanical strength, stiffness and creep resistance over a wide temperature range with extremely low thermal expansion up to 250 C, are top-rank materials for high temperature applications.

Main characteristics: 
 •  Very high max. allowable service temperature in air (250C )
 •  Excellent retention of mechanical strength, stiffness and creep resistance over a wide range of temperatures
 •  Extremely low coefficient of liner thermal expansion up to 250C 
 •  Excellent wear and frictional behaviour (particularly TORLON 4301PAI)
 •  Excellent UV-resistance 
 •  Inherent low flammability
 •  Exceptional resistance against high energy radiation (gamma and X-rays)

We distinguish five grades:
TORLON 4203 PAI (PAI)(yellow –ochre)
TORLON 4203 PAI offers the best toughness and impact strength of all TORLON PAI grades. Because of its intrinsic high temperature resistance, high dimensional stability and good machinability, this extruded TORLON PAI grade is very popular for precision parts in addition, its good electrical insulating ability provides numerous possibilities in the field of electrical components.

TORLON 4503 PAI (yellow-ochre)
This compression moulded material is similar in composition to TORLON 4203 PAI and is selected when larger shapes are required. 

TORLON 4201 PAI (PAI +graphite + PTFE) (black)
The addition of graphite and PTFE provides higher wear resistance and lower coefficient of friction compared to the unfilled grade as well as little or no stick- slip in use. This extruded grade excels in severe wear applications such as nonlubricated bearings, seals, bearings cages and reciprocating compressor parts.

TORLON 4501 PAI(PAI +graphite + PTFE) (black)
This compression moulded material is similar in composition to TORLON 4301 PAI, and is selected when larger shapes are required.

TORLON 5530 PAI (PAI GF30)(khaki grey)
This compression moulded, 30% glass fibre reinforced grade offers higher stiffness, mechanical strength and creep resistance than TORLON 4203 PAI and TORLON 4503 PAI. It isw well suited for structural applications supporting static loads for long periods of time at high temperatures. The suitability of TORLON 5530 PAI for sliding parts, however, is to be carefully examined since the glass fibres tend to abrade the mating surface.

There are four SEMITRON ESd-grades, servicing static dissipative needs over a broad range of temperatures and mechanical loading conditions:
SEMITRON ESd 225 (POM)(beige)
SEMITRON ESd 225 is an acetal based static dissipative material ideal for material handling applications. It avoids discharge problems for parts intended for human contact. SEMITRON ESd 225 is also an excellent choice for fixturing used for handling in process silicon wafers or used in the manufacturing of sensitive electronic components including hard disk drives and circuit boards.

SEMITRON ESd 410C (PEI)(black)
Having an excellent mechanical performance up to 210 C, SEMITRON ESd 410 C provides ESd-solutions at higher temperatures.Additionally, SEMITRON ESd 410C exhibits excellent dimensional stability (low coefficient of linear thermal expansion and small water absorption), ideal for handling equipment in the electrical/electronic or semi conductor industries.

SEMITRON ESd 500HR(PTFE + mica)(white)
Reinforced with a proprietary synthetic mica, SEMITRON ESd 500 HR offers an excellent combination of low frictional properties, good dimensional stability and electrostatic dissipation. Whenever virgin PTFE causes electrical discharge problems, SEMITRON ESd 500 HR will provide a controlled bleed- off of static charge while maintaining typical PTFE-properties such as broad chemical resistance, temperature resistance and low coefficient of friction.

SEMITRON ESd 520 HR (PAI)(khaki grey)
SEMITRON ESd 520 HR has an industry first combination of electrostatic dissipation (ESd), electrostatic dissipation high strength and heat resistance. This new ESd material is ideal for making nests, sockets and contactors for test equipment and other device handling components in the semiconductor industry. The key feature of SEMITRON ESd 520HR is its unique ability to resist dielectric breakdown at high voltages (>100V). Whereas e.g typical carbon fiber enhanced products become irreversibly more conductive when exposed to even moderate voltages, SEMITRON ESd 520HR maintains its electrical performance throughout the voltage range 100 to 1000 V, while offering the mechanical performance needed to excel in demanding applications