A method for producing a heat sealable multi-layer paperboard, the method comprising: a) providing a paperboard comprising a first side and a second side, b) coating at least the first side with a coating colour composition comprising ∘ 100 parts of pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 10 - 20 parts of one or more binders comprising polyvinyl acetate acrylate latex, wherein the polyvinyl acetate acrylate latex comprises 30-100% by dry weight of the one or more binders, ∘ 0-5 parts of polyvinyl alcohol, ∘ 0-5 parts of one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, ∘ water, c) drying the composition thereby producing a precoated paperboard, d) coating at least the precoated first side with a first aqueous polymer dispersion comprising ∘ 40-60% by dry weight pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 40-60% by dry weight one or more binders comprising synthetic polymers selected from polymer latexes provided that the one or more binders do not comprise polyvinyl acetate acrylate latex, ∘ 0-5% by dry weight polyvinyl alcohol, ∘ 0-5% by dry weight one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, lubricants, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, e) drying the first aqueous polymer dispersion thereby producing the multi-layer paperboard. a) providing a paperboard comprising a first side and a second side, b) coating at least the first side with a coating colour composition comprising ∘ 100 parts of pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 10 - 20 parts of one or more binders comprising polyvinyl acetate acrylate latex, wherein the polyvinyl acetate acrylate latex comprises 30-100% by dry weight of the one or more binders, ∘ 0-5 parts of polyvinyl alcohol, ∘ 0-5 parts of one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, ∘ water, ∘ 100 parts of pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 10 - 20 parts of one or more binders comprising polyvinyl acetate acrylate latex, wherein the polyvinyl acetate acrylate latex comprises 30-100% by dry weight of the one or more binders, ∘ 0-5 parts of polyvinyl alcohol, ∘ 0-5 parts of one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, ∘ water, c) drying the composition thereby producing a precoated paperboard, d) coating at least the precoated first side with a first aqueous polymer dispersion comprising ∘ 40-60% by dry weight pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 40-60% by dry weight one or more binders comprising synthetic polymers selected from polymer latexes provided that the one or more binders do not comprise polyvinyl acetate acrylate latex, ∘ 0-5% by dry weight polyvinyl alcohol, ∘ 0-5% by dry weight one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, lubricants, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, ∘ 40-60% by dry weight pigments selected from calcium carbonate, titanium dioxide, gypsum, clay, chalk, satin white, barium sulphate, sodium aluminium hydroxide, talc, kaolin, bentonite, and combinations thereof, ∘ 40-60% by dry weight one or more binders comprising synthetic polymers selected from polymer latexes provided that the one or more binders do not comprise polyvinyl acetate acrylate latex, ∘ 0-5% by dry weight polyvinyl alcohol, ∘ 0-5% by dry weight one or more additives selected from a group consisting of preservatives, dispersing agents, defoaming agents, lubricants, thickeners, lubricants, hardeners, pH modifiers and optical brighteners, e) drying the first aqueous polymer dispersion thereby producing the multi-layer paperboard.