A method for producing a cellulose product from an air-formed cellulose blank structure, wherein the method comprises the steps; providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres; applying, in a first application step (S A1), an alkyl ketene dimer dispersion to the cellulose blank structure, wherein an amount of alkyl ketene dimer compound in the range of 0.5-20 g/m 2 is applied to the cellulose blank structure, and applying, in a second application step (S A2) following the first application step (S A1), a latex dispersion to the cellulose blank structure with the applied alkyl ketene dimer dispersion wherein an amount of latex compound in the range of 0.5-20 g/m 2, is applied to the cellulose blank structure; arranging the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion in a forming mould, wherein the alkyl ketene dimer dispersion at least partly is in a wet state and the latex dispersion at least partly is in a wet state in the cellulose blank structure prior to and/or during the heating and forming in the forming mould; heating the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion to a forming temperature (T F) in the range of 100°C to 300°C, and forming the cellulose product from the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion in the forming mould, by pressing the heated cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion with a forming pressure (P F) of at least 1 MPa, preferably 4-20 MPa, wherein in the forming mould, water from the respective dispersions is evaporated and the formation of agglomerated AKD and latex compounds establishes an outer barrier structure on the formed cellulose product. providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres; applying, in a first application step (S A1), an alkyl ketene dimer dispersion to the cellulose blank structure, wherein an amount of alkyl ketene dimer compound in the range of 0.5-20 g/m 2 is applied to the cellulose blank structure, and applying, in a second application step (S A2) following the first application step (S A1), a latex dispersion to the cellulose blank structure with the applied alkyl ketene dimer dispersion wherein an amount of latex compound in the range of 0.5-20 g/m 2, is applied to the cellulose blank structure; arranging the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion in a forming mould, wherein the alkyl ketene dimer dispersion at least partly is in a wet state and the latex dispersion at least partly is in a wet state in the cellulose blank structure prior to and/or during the heating and forming in the forming mould; heating the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion to a forming temperature (T F) in the range of 100°C to 300°C, and forming the cellulose product from the cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion in the forming mould, by pressing the heated cellulose blank structure with the applied alkyl ketene dimer dispersion and latex dispersion with a forming pressure (P F) of at least 1 MPa, preferably 4-20 MPa, wherein in the forming mould, water from the respective dispersions is evaporated and the formation of agglomerated AKD and latex compounds establishes an outer barrier structure on the formed cellulose product.