You could also try wheat glue... It's what I use to make my foamboard...I'm doing shaped wings (master series style) on my new plane but still wanted under camber on the wing tips. So I thought I'd see which glue worked best. I pealed the paper off one side of the FB, shaped the FB and then reapplied the paper. For each glue I spread a thin layer on the foam, let it get tacky and reapplied the paper. After waiting a couple of hours I tried pealing the paper off.
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Rubber Cement: Didn't peal up on it's own but came off easily
Wood Glue: Strongest bond but couldn't keep it from wrinkling when I put the paper back on
Super 77: After an hour it had fair adhesion, after 2 hours was better
Gorilla Clear: Good adhesion but the messiest of the group
Beacon (from Dollar Tree): Excellent adhesion after an hour, no wrinkles and not messy - The Winner
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White flour:water 1:4.... Stir until smooth, then boil for ~2 min...