Natural liquid latex. Often used for Mold making and sfx makeup. Our liquid latex contain 1% Ammonia to increase shelf life. Liquid latex is a versatile tool that could be used for a number of obscure things like temporarily sealing a rubber duck boat or you could make an inflatable bladder. Liquid latex, when set is air and waterproof. However this is a natural product that is not uv stabilized and will degrade over time if left in the sun