Soundac® PU-D30 Two-component sandwich anti drumming for walls Description Soundac® PU-D30 is a two component polyurethane compound designed for use in constrained layer applications of steel and aluminium in non horizontal objects and walls. ® The Soundac PU-D30 viscoelastic damping layer is a specially formulated polyurethane polymer designed to produce, together with the steel construction and a steel sheet constraining layer, a final structure with very high loss factor over a wide temperature and frequency range. This dramatically reduces noise generated by vibrations in the structure. The PU-D30 is well suited and easy to combine with ® the Soundac AS sound absorbing foams. Application Soundac® PU-D30 is used in anti drumming of walls, non horizontal floors reduced vibration levels of steel structures and machines. Stock These materials are always on stock. Please contact us for a quotation and availability. Acoustics & NoiseReduction BV - Celsiusstraat 26 - 1704 RW - Heerhugowaard tel. +31 (0)72 57 27 390 - fax +31 (0)72 57 21 256 - e-mail [email protected] - website www.anr.nl Bankrekeningnr. 67.57.82.775 - K.V.K. nr. 37100240 - BTW nr. 8103.71.315.B.01

Loss factor 4 mm steel, 2 mm PU-D30, 2 mm steel Pre-treatment of surface: Aluminium and stainless steel to be painted with wash primer. Steel to be sand blasted or painted. Before use the A and B components shall be thoroughly mixed together. Observe that the pot life after mixing is about 30 minutes. o Soundac® PU-D30 Soundac® PU-D30 Soundac® PU-D30 After mixing the Soundac® PU-D30 may be trowelled out to specified thickness and the constraining metal sheet laid down in the wet layer. For vertical applications the constraining layer must be supported during the drying time. Loss factor 4 mm...