Röhm ACRYLITE® Soundstop BirdGuard, Acrylic

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Röhm ACRYLITE® Soundstop BirdGuard, Acrylic (discontinued **)
Categories:	Polymer; Thermoplastic; Acrylic (PMMA)
Material Notes:	Product: ACRYLITE® Soundstop BirdGuard is a highly transparent specialty grade of acrylic that helps to prevent bird collisions. Properties: 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 11times the impact strength of glass 100% recyclability, ACRYLITE® Soundstop BirdGuard offers the following special features: It prevents drivers feeling they are driving through a “tunnel”. ACRYLITE® Soundstop BirdGuard 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. ACRYLITE® Soundstop BirdGuard is available in transparent colors. The embedded black stripes reduce the likelihood of bird collisions. >Applications: These properties make ACRYLITE® Soundstop BirdGuard especially suitable for noise control along roads and railways wind barriers on bridges impact resistant glazing for pedestrian bridges/greenways Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.
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Physical Properties	Original Value	Comments

Density	1.19 g/cc	ASTM D729

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	69.0 MPa	ASTM D638
Elongation at Break	4.5 %	ASTM D638
Tensile Modulus	2.80 GPa	ASTM D638
Flexural Strength	117 MPa	ASTM D790
Flexural Modulus	3.30 GPa
Compressive Yield Strength	117 MPa	ASTM D695

Optical Properties	Original Value	Comments
Refractive Index	1.49	ASTM D542
Haze	1.0 %	ASTM D1003
	1.5 %	Weathered 5 years; ASTM D1003
Yellow Index	<= 1.0 %	ASTM D1925
	1.5 %	Weathered 5 years; ASTM D1925
Transmission, Visible	92 %	ASTM D1003
	92 %	Weathered 5 years; ASTM D1003

**
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