Plastic Injection Molding with ABS

What is ABS & What are its Properties?

Acrylonitrile butadiene styrene (we dare you to say that three times fast) is a common thermoplastic polymer used frequently as an engineering grade plastic. The amount of each polymer group varies a bit depending on the desired outcome of the plastic component. The nitrile group bonds together creating a strength greater than polystyrene alone. Polybutadiene has a rubbery texture providing the structure with toughness even at low temperatures. Blended with polystrene’s smooth and impenetrable qualities, the nitrile group and polybutadiene come together to create ABS, a very tough, impervious, shiny, and rigid plastic material.

Plastic injection mold designers and engineers who are knowledgeable in materials should be able to assist in adjusting the material to match the desired impact resistance and rigidity.

Plastic Injection Molding with ABS

ABS is used commonly as an engineers choice mechanical thermoplastic because in addition to its impressive impact resistance, rigidity, and smooth appearance, it is relatively inexpensive. Here are some examples of the products we used ABS plastic for:

  • Electronic Housing
  • Sensor Housing
  • Thermostat Cover
  • Emergency Call Pendant
  • Electronic Charger

ABS Fact Sheet

Technical name: Acrylonitrile butadiene styrene

Chemical name: (C8H8)x·​(C4H6)y·​(C3H3N)z)

Typical Injection Molding Temp: 204-238 Celsius, 400-460 Fahrenheit

Tensile Strength: 6600 PSI

Flexural Strength: 10800 PSI

Shrink Rate: 0.5-0.7%

Hardness: 97 (Shore A)

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