From Karma
Karmaplus Acoustic Perimeter Strip is a cross-linked, closed cell polyethylene foam strip which is designed to reduce transmission of flanking sound around the perimeter of acoustically isolated floor systems. It is pre-scored on one side for ease of application.Benefits of Acoustic Perimeter Strip Isolates acoustic flooring system from adjacent structures Reduce transmission of flanking sound and impact noise Available in standard and custom widths Flexible and easily cut Simple to install Cost effective TechnicalTotal width: 100mmScore position: 25mmThickness: 5mmRoll length: 25m