Silicone is great for making long lasting rubber bumper stoppers for your swing out door.
If your door ever gets caught in a wind gust you might find out how hard your existing stopper is from years in the sun when you see the nice hole it made in your door.
All you do is make a conical mold out of the cardboard center off a roll of toilet paper. Fill it with silicone, trying not to get any air bubbles. Stick the right size screw in the end and let cure for about 2-3 weeks and wash off cardboard under warm water.
You will have a very soft, very effective, long lasting door stop.
Off topic I know, just don't throw silicone away yet.