Because people have a need to glue things to other things

Attach to
Wood to Styrofoam
For the strongest bond we recommend:
Elmer's Probond Polyurethane Adhesive
LePage's Universal Adhesive
Gorilla Glue
or any other Polyurethane adhesive
but remember you must clamp this bond while it cures.

For an alternative that requires no clamping we recommend:

LePage's Press-Tite Green Contact Cement
Other alternatives that require no clamping but are a stronger bond if you can clamp, we recommend:
LePage's Bulldog Grip PL200
No More Nails
For the fastest bond we recommend:
Hot Glue
but remember to put the glue on the wood first, then contact it to the styrofoam. And for the least toxic alternative we recommend:
Weldbond

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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