I thought I'd try to be more 'greener' and bought some cans of Ironlaks Sugar Spray... It seems reeaally runny to me though - tags just a drippy mess and when I ttry to use for stencils it just runs through the detail :/ I havent tried many brands but Ive never experienced a can so runny. Is this a problem with the Sugar Spray? Do I need to use it differently to other brands??