Projex Sub Ballast Mat (SBM) absorbs vibrations and considerably reduces acoustic emissions as well as structure borne sound transmissions.
It protects sub-grade formation and reduces frequency of the ballast maintenance requirement(s) through reduced vibration and better-balanced loading.
The Projex Damtec® Sub Ballast Mat is available in three different thicknesses to suit your requirements: 10mm, 15mm and 20mm.