This is meant as a beginner primer for adhesives (that we use [enough to know a bit about {mostly}]). This is meant as an outline that covers the general details of each kind of adhesive. The links direct to the wikipedia page on the adhesive if you want to know more about the full details.
Cyanoacrylate: CA glue for shorthand, aka Superglue or krazyglue. However, if something is marketed as a super/krazyglue and doesnāt contain cyanoacrylate, itās not a CA glue. This is our go-to glue. Itās strong, but a bit brittle and can melt the crap out of some materials.
Cleans up with acetone nicely
Can glue most things together (EVA foam, paper, styrene all work well)
Many consistencies available (thin, thick, gel)
Quick dry/cure time, can be quickened with CA accelerante
Can be mixed with baking soda for an effective gap filler (CA cement)
Readily available anywhere that sells adhesives
Fumes/strong smell, ventilation and/or a respirator required if working with large amounts of CA glue
Melts polystyrene (EPS/XPS foam aka Styrofoam)
Fumes can leave cloudy residue
Rapid exothermic reaction with leather, cotton, and wool that can cause burns and even fire
Shelf life of about a year unless kept somewhere dark and cool (like the fridge)
Polyvinyl Acetate: Also known as white glue or Elmerās glue. Useful but a bit basic and requires open evaporation.
Pretty safe, just donāt straight-up drink it or rub it into your eyes or nose
Great for paper and other open structure materials (fabric, some open-cell foams)
Readily available anywhere that sells adhesives
Relatively weak and brittle when cured
Needs open-air evaporation to dry
Gorilla Glue: Weāve used this one a few times and it seems to work fairly well
Non-solvent, wonāt melt things most of the time (stable with XPS foam)
Readily available anywhere that sells adhesives
Needs clamping/pressure to cure properly
Expands during cure process, can squirt/drool out of joint (might be a good thing too, though)
E6000: A strong and flexible glue, great for fabrics or gluing things to fabrics.
Very flexible, can hold up to a little stretching even
Strong bond with a bit of surface sanding
Can glue many kinds of things together (EVA foam, fabric, styrene, paper, leather all work well)
Dries clear (though air bubbles and edges can be visible)
Readily available anywhere that sells adhesives
Solvent-based, will eat through polystyrene, pretty pungent smell
Can smear easily during curing
May ooze out of the tube and glue the cap to itself (plies might be required to unscrew the cap if this happens)
JB Weld: An incredibly strong 2-part epoxy. I use this a lot to strengthen a mechanical joint.
Incredibly strong, can be used to join engine parts together
Works great on most surfaces
You can drill, tap, sand and carve it once fully cured
Very long cure time, about 24 hours
Requires a very good joint and a lot of surface prep
Can be brittle under torsion
Needs more cleanup than single-part adhesives
2-part Epoxy: This is a massive group of adhesives so Iām only going to mark the basics
Cure time can vary from a few minutes to days
Needs more cleanup than single-part adhesives
Ranges from glass-hard to pretty flexible after it cures
Hot-melt adhesive (aka Hot glue): A craft standard and fairly material-safe way to adhere things together.
Works on everything that doesnāt melt or [easily] catch fire
Fairly strong with a good joint surface
Pretty safe if you donāt touch the nozzle or glue while itās hot
Safe to use on polystyrene
Great for EVA foam armor/props
Glue itself can be versatile and used for filling molds.
Glue sticks can come in a variety of colors
Can be a bit messy, nozzle keeps leaking sometimes and leaves threads of hot glue everywhere
May be visible under thinner materials if the glue isnāt smoothed out
Can straight-up melt or ignite some materials (spot test or look up the melting point of the material)
May be only semi-permanent in some cases, depending on the surfaces
Can melt when exposed to heat (donāt leave pieces glued together with hot glue in a hot car)
Contact cement: An adhesive that is applied to both surfaces, allowed to dry, then pressed together. Ā Barge and Weldwood (US) are brands commonly used in cosplay. Rubber cement is not a contact cement.
Very strong, practically permanent once bonded together
Great for EVA foam armor/props (the main go-to for a lot of foamsmiths)
Fumes require ventilation and/or a respirator
Requires a ready supply of brushes for application
Shelf life up three months to a year depending on storing conditions. Throw away if the cement begins to set up in the container
Cures in 5-10 minutes, but EVA foam may require a second coat due to its tendency to absorb materials