One of the more interesting applications Permabond supplies adhesive for is the field of Crime Scene Investigation. Cyanoacrylate adhesive is an important tool in the fight against crime as it makes latent fingerprints visible for photographing and identification. There are three types of fingerprints: visible, impression, and latent. The first two are easily photographed under correct lighting conditions. But, latent prints are not visible.
Cyanoacrylate adhesives cure by reacting with microscopic moisture traces present on virtually all surfaces. Most industrial cyanoacrylate users do not like the white “blooming” effect often caused by cyanoacrylate adhesives. Residue can be particularly visible on dark-colored surfaces. This has prompted the development of alkoxy-ethyl based cyanoacrylates and specialist activators, which offer low odor and non-blooming properties. Conversely, forensic scientists consider the high-fuming/low boiling point cyanoacrylates the most valuable in their investigative activities.
For more details about Permabond CPP621 specialist fingerprinting grade, please contact our technical team at Contact Us