Non-woven fiber mat and corresponding forming method

The invention relates to the wet-method to the bottom net wad, adapted to is used for reinforcement is connected with a coating on the surface of the sheet (such as (a coating on the surface of the non-woven fibrous mat (10) and preparation method thereof. The non-woven fibre mat at least comprises a crimped fibre (18) and first bent fibre (20) and fibre (14) sheet. Parts, most of, wherein a) the reinforcement fibres (14) is the glass system. , Adding (14) is further connected with the condition comprises glass fibre and fibre enhanced fibre. Is only comprises the non-glass fibre enhanced fibre (14) is can also. At least for a polymeric binder to the reinforcement fibres (14) bonded together, as of the fibre mat to form a is connected to a reinforced connected with a coating on the surface of the sheet the substrate, wherein used as a vinyl is coated out on the bottom fabric middle layer.