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Small Particle Reagent is most well
known for its ability to develop latent prints on wet surfaces, such as
vehicles wet with rain or even recovered from a lake or pool. This solution
can even be used underwater, as long as the spray bottle has sufficient
force to propel it through the water. It can be used on surfaces having a
residue, such as soda pop running down the side of a can. Trying to apply
regular powder to the item could damage the latent print brush and/or ruin
the latent print. SPR dry
powder can be mixed whenever you are ready to use it. Simply mix in water
and add Kodak Photo-Flo 200 according to directions. Then, shake the spray
bottle, spray the solution on the surface, rinse the surface with a spray of
water, and inspect for latent prints. You can photograph the wet latent
prints or wait until they dry. After photographing the prints, you may
attempt to lift the dry latent prints. Each container of powder (30 grams)
mixes with one liter of water.
Shelf life of dry powder:
indefinite. Keep in a cool, dark place. Shelf life of mixed solution:Best if
used within 2 months. Reports have indicated that the solution will still
work after that, however, the results may not be as good. Keep the mixed
solution in a cool, dark place. |
