Because people have a need to glue things to other things

Attach to
Styrofoam to Metal
For the strongest bond we recommend:
LePage's Metal Epoxy
J-B Weld
Faststeel Epoxy Putty if you have gaps to fill
For a less toxic alternative we recommend:
Hot Glue
Remember, put the glue on the metal first, then contact it to the styrofoam!

Whenever you are gluing metal it's a good idea to clean it first with steel wool or sandpaper. (Rust never sleeps.)

Styrofoam is a plastic that has been whipped up like a milkshake and then cured that way. That's what makes it light. Like plastic, there are many different formulas for styrofoam. They may contain any combination of styrene, urethane, neoprene or vinyl. For this reason choosing the correct adhesive is not easy. For our tests we used polystyrene which is a composition of styrene, chlorodifluoroethane and ethyl chloride, for those of you who care. The most important things to remember when choosing an adhesive for styrofoam are:

  • Never use an adhesive that contains a solvent. It will erode the styrofoam releasing all sorts of toxic fumes
  • Choose adhesives that are suited for not porous materials (remember styrofoams are plastics and plastics are non-porous)
  • Never use hot glue directly on to styrofoam. There are some cases when hot glue is an appropriate adhesive, but it should be applied to the material you are bonding the styrofoam to and left to cool a few seconds before contacting the styrofoam. The glue will get lost in the hole that it has burned, and burning plastics releases toxic fumes.
  • Remember, a glue is only as strong as the weakest material in the union. Styrofoam is easily broken and has very little tensile strength. In our tests, if the styrofoam broke before the bond, the glue was considered strong enough.

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