SADM

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Syntactic Acoustic Damping Material & Syntactic Acoustic Transducer Baffle

Syntech combines syntactic foam technology with advanced acoustics theory into a novel class of underwater sound attenuators. These materials, known as the SADM and the SATB families of syntactic foams, have repeatedly shown high levels of echo reduction and insertion loss over the 10 KHz - 100 KHz range, both at ambient pressure and at operating depth. Two types of materials are available: -1 series for broadband attenuation and -0.5 series for improved performance at higher frequencies (above 30 KHz). These materials have been found to be extremely effective in a number of underwater acoustic applications. SADM has been used extensively as an anechoic acoustic test tank lining. SATB is designed for use as a transducer isolation mounting material. Acoustic characterization graphs are available which detail the trans missive and reflective properties of flat test panels.

Product Data Select


Property Units  SADM-1 SADM-0.5
       
       
Density lb/cubic foot 125 125
  (kg/cubic meter) 2000 2000
       
Compressive psi 1,200 1,700
Strength (Mpa) 8.27 11.72
       
Compressive psi 80,000 90,000
Modulus (Mpa) 55.6 620.5
       
Tensile psi 350 400
Strength (Mpa) 2.41 2.76
       
Shear psi 400 600
Strength (Mpa) 2.76 4.14