Acoustiblok Sound Isolation Material has been extensively tested acoustically by independent accredited facilities and is approved for more than 300 U.L. rated construction assemblies. To our knowledge there is not a similar tested product that has proper UL classification at all.
An STC (Sound Transmission Class) rating is a single member rating that is used to specify and compare different partitions according to the reduction in noise levels that the partition provides. As a general rule, the higher the STC rating, the better the partition’s acoustical performance. Extended frequency testing shows that Acoustiblok provides an impressive 23db reduction at 40Hz in a standard single stud assembly with only one layer of 3mm material.
In addition, Acoustiblok is a self extinguishing material while many similar looking products are rubber based and combustible. Acoustiblok is also rated with the highest score possible (10) for protection against mould and mildew growth, is non hazardous, odour free and will not diminish in performance over time.