Detection paste is a handy means of identifying fingerprints from an object. Use detection paste in situations where powders and powder aerosols are inappropriate due to air circulation, air moisture content or where target object surface condition prohibits its application. Apply a thin film on target objects using disposable vinyl or latex gloves. Detection paste is ideal for outdoor applications! It is water-resistant and will remain transferable for prolonged periods of time. Excellent for use on door knobs, locks, alarm pulls, secure phones and vehicles both indoors and outdoors. Paste is a neutral natural color and fluoresces bright green. A longwave (UV) light source is required and available separately.