Cat Damage to Soft Top Repair Any Advise Please

Hi I have a Sunset Softop longboard which as a board I quite like, but it has been damaged by a former owners moggy. The EVA soft surface that is stuck over the hard epoxy base has been used by the cat to try and sharpen its claws I think leaving many cuts and small missing chunks. Can anyone please suggest or know how I can restore/repair the surface layer, I am thinking glues, fillers or replacement EVA sheet that will be up to the job, flexible and look reasonably good. I have tried strong silicon but it didn't adhere well enough. Thanks for any suggys Steve R