I use heavy duty Velcro its never come off but the secret about applying Velcro or even decals for the body shell is that you have to completely clean the area for sticking so that its clean from grease etc it may look clean to you but its not you must do it or it will start to peel off over time. I use lighter fluid it cleans everything off .use it under supervision if under 18 .remember it is very flammable.!
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