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The SEMITRON ESd family of static dissipative plastics is designed for applications where electrical discharge in operation is a problem. They provide a controlled bleed-off of static charges.

Main characteristics:

  • permanently static dissipative
  • dissipate static charges (5 kV) in less than 2 seconds
  • no metals or graphite / car-bon powder used

There are three SEMITRON® ESd-grades, servicing static dissipative needs over a broad range of temperatures and mechanical loading conditions:

SEMITRON ESd 225  Material Data sheet

SEMITRON ESd 410C Material Data sheet

SEMITRON ESd 500HR Material Data sheet

SEMITRON ESd 520HR Material Data sheet

SEMITRON ESd 225 Safety Data sheet

SEMITRON ESd 410C Safety Data sheet

SEMITRON ESd 500HR Safety Data sheet

SEMITRON ESd 520HR Safety Data sheet

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 inclu-ding hard disk drives and circuit boards.

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

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


SEMITRON® ESd 520HR has an industry first combination of electrostatic dissipation (ESd), 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. The key features of 520HR are its unique ability to resist dielectric breakdown at high voltages (>100V). The graph below demonstrates the electrical performance of plastic materials commonly used in automated test handlers. Typical carbon fiber enhanced products become irreversibly more conductive when exposed to even moderate voltage.

Only SEMITRON® ESd 520HR maintains its performance throughout the voltage range, while offering the mechanical performance needed to excel in demanding applications.

SEMITRON® is a registered trade mark of Quadrant Engineering Plastics Products.

The information given here is believed to be correct, but completeness and accuracy are not guaranteed. The user shall be fully responsible for determining the suitability of products for the intended use.