Be careful using a 'regular' silicone spray! I tried it before, and the spray comes out super thick, and super fast. It was too much and permanently matted down the feathers. I tried a few different methods of application, and holding the can really far back from the feathers helped, but the residual spray covers everything! Even with a few light applications, a heavy rain will still soak the feathers. I am not satisfied with the results, and will try something different in the future.