<P> Cyanoacrylate is used as a forensic tool to capture latent fingerprints on non-porous surfaces like glass, plastic, etc . Cyanoacrylate is warmed to produce fumes that react with the invisible fingerprint residues and atmospheric moisture to form a white polymer (polycyanoacrylate) on the fingerprint ridges . The ridges can then be recorded . The developed fingerprints are, on most surfaces (except on white plastic or similar), visible to the naked eye . Invisible or poorly visible prints can be further enhanced by applying a luminescent or non-luminescent stain . </P> <P> Thin CA glue has application in woodworking . It can be used as a fast - drying, glossy finish . The use of oil (such as boiled linseed oil) may be used to control the rate at which the CA cures . CA glue is also used in combination with sawdust (from a saw or sanding) to fill voids and cracks . These repair methods are used on piano soundboards, wood instruments, and wood furniture . CA glue is also used in the finishing of pen blanks that have been turned on a lathe by applying multiple thin layers to build up a hard, clear finish that can then be sanded and polished to a glossy finish . </P> <P> CA glue was in veterinary use for mending bone, hide, and tortoise shell by the early 1970s or before . Harry Coover said in 1966 that a CA spray was used in the Vietnam War to reduce bleeding in wounded soldiers until they could be brought to a hospital . n - Butyl cyanoacrylate has been used medically since the 1970s . In the US, due to its potential to irritate the skin, the U.S. Food and Drug Administration did not approve its use as a medical adhesive until 1998 with Dermabond . Studies confirm that cyanoacrylate can be safer and more functional for wound closure than traditional suturing (stitches). The adhesive is superior in time required to close wounds, incidence of infection (suture canals through the skin's epidermal, dermal, and subcutaneous fat layers introduce extra routes of contamination), and final cosmetic appearance . </P> <P> Some rock climbers use cyanoacrylate to repair damage to the skin on their fingertips . Similarly, stringed - instrument players can form protective finger caps (in addition to calluses) with cyanoacrylates . While the glue is not very toxic and wears off quickly with shed skin, applying large quantities of glue and its fumes directly to the skin can cause chemical burns . </P>

When was super glue first used on wounds
find me the text answering this question