Picture of Reveal Fingerprints Using Super Glue

Picture this:
You come home after spending the weekend away camping and find your house trashed! Plates are smashed, your furniture is destroyed and, worst of all, your prized little-league trophy is snapped in half! As you wander amidst your destroyed possessions you notice something glinting on the table. The vandal left their lighter behind! You could call the police like a normal person, OR you could identify the criminal yourself with the power of super glue!

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Step 1: How It Works

Super glue is made of cyanoacrylate, a substance that, when heated to a vapour, reacts the oily residue left behind by the pores of the finger to create a fingerprint on a piece of evidence, such as a gun. if the evidence is put in a heated airtight container with high humidity (this is where the dish of hot water comes in) along with super glue the super glue will boil away into the immediate atmosphere and will eventually settle on the residue left behind by the finger. The reaction gives the residue a whitish appearance, making the fingerprint easy to see.

Step 2: What You Need:

- A shoe box or similar sized box
- Duct tape or masking tape
- Small container (to hold hot water)
- Super glue
- Scissors
- Tinfoil
- A heat source, such as an incandescent light bulb (I used the base of a lava lamp)
- A piece of "evidence" with a fingerprint on it (smooth, hard materials like plastic, metal and glass work best)

Step 3: Preparation

Picture of Preparation
- Form the tinfoil into a rough dish shape, or just crumple it into a ball and make an indent with your thumb.
- Cut a small hole in the side of the box to accommodate the power cord of your heat source.
- Place the tinfoil dish as close to the heat source as possible, and place the small container opposite it.
- Put your evidence between the tinfoil dish and small container.
gluefarm5 months ago

This is a nice and simple . Thanks for sharing....

darrenhall1 year ago
A professional and well laid out instructable - cool too cos I always have super glue around - am off to give it a try.

M3G (author)  darrenhall1 year ago
Thank you! Hope it works well for you.
jumper11111 year ago
Its awesome man!!!!
M3G (author)  jumper11111 year ago