Effectiveness of Blu Tack on holding up a poster in hot dry conditions

Method
1. Buy a piece of cardboard and Bostik Blutack from the newsagency.
2. Stick the piece of cardboard in the different areas that was mentioned before. Eg bedroom, bathroom, living room, kitchen, backyard shed, outside in the sun, outside in the shade.
3. Use finger sized blu-tack to stick on one side of the cardboard.
4. Observe each day how sticky the blu-tack is.
5. Record the results
5.  Repeat the experiement using normal A4 white paper.

more research stuff

POSTER
WHAT’S IT MADE OF?
DOES THE GLOSSY PART OF THE POSTER AFFECT THE EFFECTIVENESS OF BLU TACK?