Silicone if diluted is generally such a few things: petroleum solvents, toluene, water soluble can be diluted with water. In general, silicone pure products are some polyether taste, is slightly that kind of a little pungent taste, if you smell the smell of gasoline or toluene can be identified as diluted. If in doubt, test a volatile, weigh a certain amount, place it in a heat-resistant container, heat it to 150 degrees, and bake it for half an hour to an hour. If the tested volatile is more than 5%, it is considered diluted.