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  1. Materials
  2. Acrylic
Acrylic
Strength, Stiffness, Wear Resistance

Acrylic for CNC Machining

Acrylic is a clear thermoplastic known for its exceptional strength, rigidity, and optical transparency.

Please 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.

Design Tip

To save money on acrylic parts, minimize the number of part setups, inspection dimensions, or strict tolerances, and avoid deep pockets with small radii.

Hardness

Material hardness is based on the Rockwell Hardness Scale.

View spec sheet

A strong plastic that provides outstanding versatility, durability, and aesthetic qualities

Acrylic

Acrylic is a clear thermoplastic known for its exceptional strength, rigidity, and optical clarity. It is simple to manufacture, adheres well with adhesives and solvents, and is straightforward to thermoform. It offers superior weather resistance compared to many other clear plastics. Acrylic sheets possess glass-like qualities—clarity, brilliance, and transparency—but are half the weight and have significantly greater impact resistance than glass.

In addition to providing outstanding versatility, durability, and aesthetic qualities, acrylic can be easily machined into different shapes and sizes, allowing for a wide range of design possibilities.

Performance Characteristics

  • Easy to fabricate and machine
  • Good dimensional stability
  • Strong, stiff, optically clear 
  • Easy to solvent bond 
  • Good weathering

Common Brands

  • OPTIX
  • Plexiglas
  • ACRYLITE

Acrylic Properties

  • Mechanical Properties
  • Thermal Properties
  • Electrical Properties
  • Optical Properties
  • Mechanical Properties

    Tensile Strength 10,000 psi
    Tensile Modulus of Elasticity 400,000 psi
    Tensile Elongation 4.5%
    Flexural Strength 17,000 psi
    Flexural Modulus of Elasticity 480,000 psi
    Compressive Strength 17,000 psi
    Hardness (Rockwell) M95
    Izod Impact 0.4 ft-lbs/in

  • Thermal Properties

    Coefficient of Linear Thermal Expansion 4.0in/in/°F x 10-5
    Heat Deflection Temperature (66 psi/264 psi) - / 195 °F
    Max Continuous Service Temperature in Air 160 °F

  • Electrical Properties

    Dielectric Strength 430 V/mil

  • Optical Properties

    Light Transmittance 92%
    Haze 2%