Quart (946 ml.) Epoxy Sample Containers - 10/case These Solid Sample Metal Evidence Containers are a standard method of preserving "solid" forms of physical evidence. Once the lid is put in place, an airtight seal is formed which prevents flammables and hydrocarbons from evaporating into the atmosphere. The inside of the container and lid are coated with an epoxy paint to prevent rust from forming when storing wet or damp evidence.