• EVA is the copolymer of ethylene and vinyl acetate, typically contains 26% Vinyl Acetate. • Very good sound insulating properties in the high frequency range. • It is the dominant photovoltaic encapsulant. • Highly adhesive to materials other than glass, thus it is used for connections and glued supporting structural details, such as point …

The following test standards are used in the evaluation of EVA PVB SGP TPU interlayers laminated glass or safety glazing systems for sound transmittance: • ASTM E 90 – Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements • ASTM E 413 – Classification for Rating Sound Insulation …