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ESD MATERIALS

Engineering Plastic Stock Shapes with Static Dissipative (ESD) Properties In recent years, industry has demanded a range of materials that not only possess strength, wear properties, heat and chemical resistance but materials that are less resistive to the build-up of a static charge.

TECAFORM™ SD
Surface Resistivity: 10⁹ - 10¹¹
Ensinger's static dissipative acetal contains no carbon fibers or powders and is generally accepted for clean room use. With its surface resistivity of 10⁹ to 10¹¹ ohm/square and its excellent bearing and wear characteristics, TECAFORM™ SD is ideal for moving components which may experience frictional or fluid-flow static charges.

HYDEL® PC7
Surface Resistivity: 10⁵ - 10⁷
A polycarbonate based material with a proprietary carbon filler component. The highly dispersed filler imparts outstanding electrical consistency to minimize any hot spots. The material has the best repeatability and predictability of any commercially available carbon based filler. HYDEL® PC7 has minimal sloughing as compared to other carbon- based fillers. This material also retains much of the physical properties of polycarbonate without the loss of impact and tensile properties that can occur with standard carbon based or fiber fillers.

HYDEL® PC-P ESD
Surface Resistivity: 10⁷ - 10¹²
HYDEL® PC-P ESD polycarbonate is a static dissipative thermoplastic product containing carbon powder. This material has good stiffness, excellent dimensional ability, and low outgassing properties.

HYDEL® PEI7
Surface Resistivity: 10⁶ - 10⁸
A static dissipative polyetherimide utilizing proprietary filler technology which renders this material electrically conductive. This technology allows for good dimensional stability after machining (unlike conventional carbon fibers), consistent electrical properties, excellent surface quality and minimal sloughing. It also possesses outstanding toughness and excellent thermal stability.

TECAPEEK™ PVX
Surface Resistivity: 10⁵ - 10⁸
An ultra high performance bearing material based on the PEEK polymer. Some of the wear enhancing additive also provides a high degree of static dissipation. TECAPEEK™ PVX provides high temperature use with low thermal expansion.

SINTIMID™ ESD 23
Surface Resistivity: 10⁸ - 10¹¹
SINTIMID ESD 23 has the highest compressive strength and use temperature of the group. It is based on an Ensinger-Hyde manufactured polyamide-imide resin with a low sloughing, additive package.

	(OHMS/SQ)	Typical Surface Resistivites
	10⁹ - 10¹²	Anti-Static - Initial charges are suppressed
	10⁶ - 10⁹	Dissipative - No or low initial charges prevents discharge to or from human contact
	10² - 10⁵	Conductive - No initial charge, provides path for charge to bleed-off

Electrostatic Dissipators

Static Electricity	Electrostatic Discharge (ESD)	Surface Resistivity
Stationary charges of electricity (voltage) Generated by sliding or rubbing Potential up to 40,000 Volts Remains in localized Contact area (for plastics)	"Quick" voltage reduction Caused by Arc or spark Possible results: Microcircuit damage Painful shock	Resistance to electricity on a material surface (ohm/cm) Higher-More Insulative (Most Plastics) Lower-More Conductive (Most Metals)

	Conductor	Conductor	Static Dissipators	Antistatic	Insulator
Surface Resistivity -ASTM D257- (Ohm/Cm)	10⁶	10² - 10⁶	10⁶ - 10¹⁰	10¹⁰- 10¹²	10¹⁵ - 10¹⁷
Materials	Most Metals	Conductive Plastics*	Filled Plastics**	Filled Plastics**	Most Unfilled Plastics
Materials	Most Metals	ABS Acetal Polycarbonate Polypropylene PVDF (Kynar) UHMW-PE	ABS Acetal Polycarbonate Polypropylene PVDF (Kynar) UHMW-PE (Tivar Antistatic)	ABS Acetal Polycarbonate Polypropylene PVDF (Kynar) UHMW-PE	Most Unfilled Plastics

*Filled with Carbon Powder, Carbon Fiber or Stainless Steel
**Filled with Carbon Powder, Carbon fiber or Coated Carbon Fiber.

View Typical Property Values

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.

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TECAFORM™ is a trademark of ENSINGER-HYDE.