Injection Molding Plastics

Delve into our Injection Molding Plastics archive to see how various plastic materials are transformed into complex and durable products. This section highlights the process and precision involved in plastic injection molding, showcasing the versatility and efficiency of this manufacturing technique in creating high-quality parts.

Plastic Injection Molding feature
#
Material
Properties
Technical information
Typical usage
1

Acrylonitrile Butadiene Styren (ABS)

+ Durable, with good impact and heat resistance
+ Good dimensions
+ Can be molded into complex objects
- Prone to warping
- Cracking under certain conditions (exposure to UV light and heat)

Shrinkage: 0.4% to 0.8%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Automotive parts, toys, electronic housings, luggage and kitchen appliances

2

Polypropylene (PP)

+ High strength-to-weight ratio
+ Good chemical resistance
+ Low cost
+ Easy to process and can be molded into a variety of shapes and sizes
- Not as strong as other materials such as ABS
- Not suitable for high-stress applications
- Prone to warping and shrinking

Shrinkage: 1.0% to 2.5%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Packaging, containers, automotive parts, medical devices

3

Polyamide 6 (PA6)

+ High tensile strength
+ Low moisture
+ Absorption
+ Good chemical resistance
+ Good dimensional stability and can be easily molded into complex shapes
- Prone to warping and shrinkage during the injection molding process

Shrinkage: 1.5% to 3.0%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Gears, bearings, electrical components, automotive parts

4

Polymethyl Methacrylate (PMMA)

+ High transparency
+ Good impact strength
+ Weather resistance
+ Easily molded into complex shapes
+ Good dimensional stability
- Prone to scratching and cracking under certain conditions, such as exposure to harsh chemicals or high temperatures
- More expensive than other materials such as ABS or PP.

Shrinkage: 0.2% to 1.5%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Lighting fixtures, automotive lenses, medical devices

5

Polycarbonate (PC)

+ High impact resistance, transparency, and heat resistance
+ Easily molded into a variety of shapes and sizes
- More expensive than other materials such as ABS or PP
- Prone to warping and shrinking during the injection molding process

Shrinkage: 0.5% to 0.8%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Electronic components, automotive parts, medical devices, safety helmets
6

Polyoxymethylene (POM)

+ High strength, stiffness and dimensional stability
+ Good chemical resistance
+ Can be easily molded into complex shapes with tight tolerances
- Prone to warping and cracking under certain conditions, such as exposure to UV light or high temperatures
- More expensive than other materials such as ABS or PP

Shrinkage: 1.5% to 2.5%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Gear wheels, bearings, electrical components

7

Polyether Ether Ketone (PEEK)

+ Excellent mechanical properties, including high strength, stiffness, and creep resistance
+ Good chemical resistance and can withstand high temperatures and harsh environments
- More expensive than other materials such as ABS or PP
- Prone to warping and shrinking during the injection molding process

Shrinkage: 1.0% to 3.0%
Tolerances: +/- 0.002 inches (0.0508 mm) to +/- 0.005 inches (0.127 mm)

Aerospace components, medical devices, electrical connector

8

Polyethylene (PE)

+ Low cost, toughness, and chemical resistance
+ Easily molded into a variety of shapes and sizes
- Not as strong as other materials such as ABS or PC
- Prone to warping and shrinking

Shrinkage: 1.5% to 3.5%
Tolerances: +/- 0.010 inches (0.254 mm) to +/- 0.020 inches (0.508 mm)

Packaging, containers, toys

9

Polyethylene Terephthalate (PET)

+ High strength, toughness, and transparency
- Prone to warping and shrinking

Shrinkage: 0.2% to 1.0%
Tolerances: +/- 0.005 inches (0.127 mm) to +/- 0.010 inches (0.254 mm)

Bottles, jars, containers

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Delve into our Injection Molding Plastics archive to see how various plastic materials are transformed into complex and durable products. This section highlights the process and precision involved in plastic injection molding, showcasing the versatility and efficiency of this manufacturing technique in creating high-quality parts.

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