PTEROFLAT XT
PMMA Sound Wall Barrier
Noise induced hearing loss can happen due to continuous exposure to loud sounds over an extended period of time. Long or repeated exposure to sounds at or above 85 dBA can cause hearing loss. Residential and office buildings that are close to railway lines and highways need to include protection from damaging noise levels to protect public health. Politem’s PTEROFLAT XT branded acrylic acoustic wall barrier sheets which are specially designed to absorb and reduce sound, provides solution to manage high noise levels in urban and industrial areas that are close to railway lines or highways.
Thanks to it’s light weight and virtually unbreakable structure, PTEROFLAT XT acrylic (PMMA) sheets can be installed next to highways and railways conveniently without need of any maintenance for years.


Properties
Density | 1.19 g/cm3 | Method | ISO 1183 | ||||||
Water absorption | 0.3% | Method | ISO 62 (1) | ||||||
Flammability | HB | Method | UL-94 class | ||||||
Light Transmission | 92% | Method | ASTM D1003 | ||||||
Refractive Index | 1.49 | Method | ISO 489 A | ||||||
Haze | <1% | Method | ASTM D1002 | ||||||
Tensile Strength | 72 MPa | Method | ISO 527-2 | ||||||
Elongation at Break | 4% | Method | ISO 527-2 | ||||||
Tensile Modulus | 3300 MPa | Method | ISO 527-2 | ||||||
Flexural Strength | 106 MPa | Method | ISO 178 | ||||||
Flexural Modulus | 3350 MPa | Method | ISO 178 | ||||||
Rockwell Hardness | 95 M-scale | ||||||||
Charpy Impact Resistance | 15 | Method | ISO 179/1fu | ||||||
Izod Notched Impact Strength | 1.5 kJ/m3 | Method | ISO 180 | ||||||
Charpy Notched Impact Strength | 6.0 kJ/m2 (+,- 0.5) | Method | ISO 179/1eA | ||||||
Temp. of Deflection Under Load | 95 oC (ISO 75-1) | ||||||||
Coefficient of Linear Thermal Expansion | 0.065 mm/(mx1/ oC) (ISO 11359) | ||||||||
Vicat Softening Temperature (50N) | 103 oC (ISO 306) | ||||||||
Recommended Continuous Service Temperature | 70 C° | ||||||||
Recommended Maximum Temperature / Short Time | 91 C° |
PTEROFLAT XT PMMA Acrylic Sheets do not require not require any UV protective layer.POLITEM Dynamic Plastic provides 10 years of limited warranty for UV resistance.