Fluorescent Sirchmark Evidence Marking Paint (Orange)Large size paint (17 oz) allows investigator to mark up to 300 linear feet per can Paint is water based and ideal for use on most surfaces including pavement, gravel, grass, and soil Sirchmark Evidence Marking Paint is a highly visible and versatile marking tool for the investigation of crime scenes and accidents. The inverted design of the can makes it very easy to use and works great on its own.