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Latex is a natural ingredient that comes from rubber trees in the form of a milky liquid. There are thousands of species of plants that produce different types of latex, including the Chicle tree that yields the raw material for producing the rubbery material in chewing gum.
Sticky-side powder is a product specifically designed for use in developing latent prints on the adhesive side of tape. It is painted onto the adhesive side with a brush, allowed to remain there for 10 to 20 seconds, and then rinsed with water. A gray-black or white print will be developed.