What is Injection Molding ABS?

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If your project requires a rigid product that is lightweight and durable, consider ABS plastic for your job. A few popular items made from ABS include appliances, toys, medical supplies, musical instruments, computer parts and more. The ICOMold team are experts at ABS injection molding and can provide you with a seamless process from prototype to production. 

Acrylonitrile Butadiene Styrene or ABS is a thermoplastic polymer widely used for injection molding. It is durablecan stand up to scratching, is budget-friendly and is easy to machine and fabricate. ABS can be used in conjunction with a metal coating as many metals can adhere strongly to ABS plastic. ABS is perfect for projects that demand strength, stiffness and impact resistance. It can be painted, glued and is easy to recycle. ABS plastic properties are not highly sensitive to temperature or humidity. Molding ABS at a high temperature produces resistance to heat and an excellent gloss. Molding ABS at a low temperature will result in strength and impact resistance. Therefore, its final properties and strength are influenced by the conditions used during the manufacturing process. 

Advantages of Injection Molding ABS

Acrylonitrile Butadiene Styrenes wide variety of applications combined with the effectiveness of the injection molding process results in numerous advantages. Some of these primary benefits of using ABS for an injection molding project include:

  • Heat resistant
  • Easy to mold 
  • Good machinability 
  • High impact strength 
  • Dimensional stability 
  • Tensile strength and stiffness 
  • Toughness 
  • High stability under load 
  • Low melting temperature 
  • Can be alloyed with polymers 
  • Recyclable
  • Paintable 
  • Low cost 
  • Colored easily 

ABS plastic should not be used for products whose end-use will place them under direct sunlight or near an open. Fire-retardant and heat-resistant grades of ABS are available. Some ABS components can emit toxic fumes after heating. 

Injection Molding ABS Specifications 

There are several different ABS plastic grades available, including glass-filled, transparent, high luster and high impact. ABS has excellent electrical properties across a wide range of frequencies. Injection molding ABS at a high temperature will create heat resistance and gloss while molding at a lower temperature produces greater strength and impact resistance. It has a shiny and impervious surface. Properties of ABS: 

  • Injection Molding Temperature: 400-460 F 
  • Heat Deflection Temperature: 208 F at 66 psi 
  • Flexural Strength: 10800 psi 
  • Shrink rate: 0.5% – 0.7% 

Injection Molding ABS Process

ABS plastic begins as a pellet, which is then melted into a moldable state. It is then injected into the cavity of a two-part mold where it will form a part. The plastic will solidify almost as soon as the mold has been filled. The piece then cools to the shape of the mold. Once it has thoroughly cooled, the “A” and “B” sides of the mold open to eject the part, where it falls into a bin. The two parts of the mold then reset to begin the process again. 

Applications of Injection Molding ABS 

ABS is often used in plastic injection molding applications where strength, stiffness and impact resistance is desired. Polycarbonate is very popular and used across multiple industries for both commercial and consumer goods. Some common uses of polycarbonate in injection molding include: 

  • Automotive parts 
  • Appliances 
  • Toys 
  • Computer parts 

Get a Quote on Injection Molding ABS Today

ICOMold can work with you on the design and production of your ABS part. Get an instant quote today.  

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