Rhodamine 6G is one of the best laser/Forensic Light Source dyes available on the market for developing latent prints. It is inexpensive, safe-to-use and a little goes a long way. Mix about 0.1 gram in 2-3 litres of solvent, it can be diluted in Methanol or other similar solvent, or in water and be used on metal, glass, leather, plastic, and other objects. Tests should be conducted on different surfaces to determine which solvent mixture will work the best on a particular surface.
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