Backing material: PE film, non-woven fabric, paper.
Detail
PU Foam underlayment made from natural, recycled,non-polluted sponge,it has no hard lump and no binder ball in the sponge.Underlayment under your carpet gives you a comfortable feet feeling,and extends the lifespan of your carpet. Rich step is a luxury use underlay, suitable for any area of the home where a high degree of comfort is required. Excellent thermal and sound reduction properties. excellent recovery characteristics.