As spray Gunex Oil contains additively compressed air to relief the environment. Gunex is also available in bottles with liquid oil and in bundles with professional oiler with atomizers as an alternative to spray cans. A list of all container sizes of Gunex Oil you will find below. Gunex Spray - the perfect oil for the long-term preservation of bare metallic parts, even in extreme conditions (-50C up to 100C); this oil creeps between metal and moisture, infiltrates hairline cracks, cleans, keeps surfaces smooth, does not get sticky or resinify either. Gunex 2000 is free from silicone.