Our Wet Set Blood dries within 30 minutes. To be used on non porous surfaces. For professional use only. Not to be taken internally. This product is sold in good faith with no warranty expressed or implied. Our Wet Set Blood is used on most of our props and masks to get the gory effect desired. Our Old Blood version of our Wet Set Blood is a darker tone than our Fresh Blood. Available in 4oz, 8oz, 16oz, 32oz, and 1 Gallon.