There is disclosed a composition for producing an elastomeric film comprising: a synthetic polymer, sulphur, and a metal-oxide cross-linking agent. The concentration of the total solids in the composition is between 5-20% by weight of the composition. Also disclosed is a multiple-coating method of manufacturing an elastomeric film comprising the steps of: (i) providing a composition comprising a synthetic polymer, a cross linking agent, wherein the concentration of the total solids in the composition is between 5-20% by weight of the composition, (ii) contacting the composition with a mold to form a layer of composition on the mold, (iii) contacting the layer of composition on the mold with a further amount of the composition to form a further layer, (iv) drying the composition, and (v) curing the composition.