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.
