For those of you that are looking for some sort of cover or sleeve for your CF bottle to protect it or to get rid of the ugly marking on the bottle, I found the prefect solution. I bought a can of liquid rubber in a spray made by Plasti Dip. I removed the bottle from my gum and taped up the neck with duct tape, suspending it with a string. I then cleaned the outside with alcohol and applied 12 even coat with 20 minutes of dry time between coats. I let it dry for 24 hours. The color and texture matches perfectly to the barrel and gun. This product is very durable and can be removed by putting a small cut in to the rubber then peeling it away. I have used this product for coating and silencing stabilizers on my compound hunting bow.