| SelectaDNA GreaseSelectaDNA Grease has been specially designed to protect outdoor materials such as lead roofing and copper piping, which are particularly vulnerable to theft. If a thief handles marked goods, SelectaDNA Grease instantly transfers onto his or her hands and clothing. The Police can then scan suspects with UV detection equipment to locate traces of the substance. The grey Grease is almost impossible to remove and the unique DNA code irrefutably links the perpetrator to the crime scene. 100ml of the Grease will mark approximately 25 linear metres using the 3cm wide paintbrush supplied in the kits. | 
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