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An electrically active composite made up of acetal and a non-carbon. nonfiber filler. Hydel ASD provides excellent wear resistance and anti-static properties (surface resistivity of 109 – 1011 ohms/sq). Hydel® ASD can be used for wear applications in assemblies where the prevention and/or the controlled dissipation of static charges is required. Components such as rollers. bushings. gears. hinges. and wear strips used in equipment utilizing semiconductor and electronic devices are ideal candidates for Hydel ASD.

Hydel ASD has the following features:

  • Hydel ASD will dissipate static electrical charges at a controlled rate that will not damage sensitive semi-conductor devices.
  • Hydel ASD has outstanding wear resistance and will outlast steel. brass. bronze. and aluminum in most applications.
  • Hydel ASD is non-sloughing (no conductive particle generation during wear).
  • Hydel ASD’s natural color is off white and the material is fully colorable.
  • Hydel ASD shares the excellent dimensional stability and machinability properties offered by acetal.

ENSITAL SD is a natural copolymer acetal with static dissipative characteristics. Its comparatively low surface and volume resistivities. excellent bearing and wear properties. and toughness make ENSITAL SD an ideal material for moving components experiencing friction. or parts subject to fluid flow contact. ENSITAL SD contains noncarbon. permanently anti-static additives which do not migrate and are not affected by humidity levels.

Acetal SD products are inherently dissipative and electrically stable unlike many other “dissipative” plastic shapes. They do not rely on atmospheric phenomena to activate. nor are surface treatments used to achieve dissipation. Static electricity is dissipated through these products as readily as it is dissipated along the surface. All of these products dissipate 5 KV in less than 2 seconds per Mil-B-81705C. Acetal SD (ESd) is ideal for fixturing used in the manufacturing of hard disk drives or for handling in-process silicon wafers

ESD is an acronym for electrostatic discharge. Many times it is used incorrectly as a term for something that is “electrostatic discharge safe.” The terms Anti-Static. Conductive. and Dissipative are all terms that subdivide ESD into more detail.

Brand Names

  • Unital® ESD

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative at mailbox@emcoplastics.com

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Technical Information

Stock Products Properties Applications Advantages Grades Downloads

Stock Products

TypeSizeLengthColor
Sheet 1/32″ – 1/4″ TH Standard 48″ x 96″; CTS White, Black
Film Custom Custom Custom

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in3 D792 0.0376
Mechanical PropertiesUnitsASTMResults
Tensile Strength @yield psi D638 6
Tensile Modulus psi D638 610
Flexural Strength psi D790 9.6
Flexural Modulus psi D790 340
Hardness. Rockwell R D785 105
IZOD Impact Strength Notched ft-lb/in D256 8
Thermal PropertiesUnitsASTMResults
Heat Deflection Temp at 264 psi °F 198
Flammability Rating UL94 H-B

NOTE: The property values presented above 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. All values at 73°F (23°C) unless otherwise noted.

Applications

  • Tub/Shower surrounds
  • Boat accessories
  • Electronic component housings
  • Automotive trim parts

Advantages

  • Good strength and stiffness
  • Cost effective
  • Easily machined
  • Good chemical resistance
  • Durable
  • Bondable

Grades

  • Machine Grade. FDA compliant (natural and black)
  • Machine grade. non-FDA (natural and black)
  • Flame retardant grade (natural and black)
  • Static Dissipative (Black. Natural (beige). Semitransparent)

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