For the best results and minimising the weight, think about the size and proportion of your advert on the glider. The coloured material weighs 55g/m², thus you can calculate the approximate additional weight and its potential effect on your flying pleasure, mainly during take-off.  

Blue ( 100:40:0:0 )	Red  ( 0:100:100:0 )	Turquoise ( 40:0:0:0 )
Orange ( 0:60:100:0 )	Violet ( 40:100:0:0 )	Gold ( 0:25:100:0 )
Black ( 0:0:0:100 )	White ( 0:0:0:0 )	Grey ( 0:0:0:40 )