ACRYLITE® Soundstop Transparent Noise Barriers Technical Information


ACRYLITE® Soundstop is a highly transparent specialty grade of acrylic.


In addition to the well-known and proven properties of ACRYLITE®, such as:

  • Excellent light transmission and brilliance
  • Extremely high weather resistance
  • Ease of fabrication
  • High surface hardness
  • Low weight – half the weight of glass
  • 11 times the impact strength of glass
  • 100% recycle-ability

It offers the following special features:

  • Prevents drivers from feeling they are driving through a “tunnel”
  • Offers a superior sound reduction rating (STC) of 32 dB or higher by ASTM E 90
  • Large noise barrier elements reduce the need for steel supporting structures and enhance the transparency of the noise barrier
  • Available in transparent colors


These properties make it especially suitable for:

  • Noise control along roads and railways
  • Wind barriers on bridges
  • Impact resistant glazing for pedestrian bridges and trails/greenways


  • It can be machined just like standard ACRYLITE®

Physical forms

Available in the following sizes and thicknesses:

Length:up to 20ft


Thicknesses:15 – 20 – 25 mm

Other lengths and thicknesses are available on request.

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Typical Values – ACRYLITE® Soundstop

PropertyTest StandardValue
Specific Gravity ASTM D-792 1.19
Weight per unit area 15 mm thick 3.66 lbs / ft2
Sound Transmission Coefficient ASTM E-90 32 dB at 15mm
Sound Transmission Coefficient ASTM E-90 34 dB at 20mm
Sound Transmission Coefficient ASTM E-90 36 dB at 25mm
Refractive Index ASTM D-542 1.49

Light Transmission, Total

Weathered 5 years AZ

ASTM D-1003




Weathered 5 years AZ

ASTM D-1003



Yellowness Index Weathered 5 years AZ ASTM E 313

Less than 1


Tensile Strength

Elongation at Break (%)

Modulus of Elasticity

ASTM D-638

10,000 psi (69 MPa)


400,000 psi (2,800 MPa)

Flexural Strength

Modulus of Elasticity

ASTM D-790

17,000 psi (117 MPa)

480,000 psi (3,300 MPa)

Compressive Strength (Yield) ASTM D-695 17,000 psi (117 MPa)

Resistance Against Stone Projectiles

(15 mm thickness)

EN 1794-1 Pass
Impact-Windborne Debris in Hurricanes ASTM E-199 Pass


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