Rather than try to space the adhesive on the wall and squish the poster against it it s much easier to place the poster facedown on a clean surface and attach the adhesive to the poster before putting it on the wall.
How to hang a poster board on the wall.
You may take a couple of steel nails and hammer them into the wall at two different but inline points from the top of the poster.
Attach the removable adhesive to the back of the poster.
Drill pilot holes on the marked spots using a drill bit the drill bit needs to be smaller than the width of the wall screw.
This will make your posters easier to work with since the edges won t be curling back up as much.
Now it is straightforward to clip and unclip the desired posters anytime without damaging the posters.
Lay down your poster down with the printing side up on a clean flat surface like a freshly cleaned table top.
Your poster board will now be secure until you want to remove it.
Aside from potential staining this is a damage free hanging solution.
Lay the poster or posters flat printed side up on a clean surface weigh them down at the corners for a few hours or a day.
Posters printed on hard plastic or similar materials will obviously not need to be prepped this way.
Unscrew the cap from the barrel.
Draw a straight horizontal line.
Mount your print on a sheet of foam core which gives your print structure but is still lightweight enough to easily hang.
To use it you take a small amount and knead it in your hand to warm it up and then solidly press it onto your wall.
Screw the wall screw through the bottom of the barrel and into the pilot hole line up the holes on your signage with the barrels on the wall.
Coffee table books work great for this.
When you unroll your rolled posters they will need a little time to get flat.
Press the poster board onto the wall making sure to press each spot of adhesive firmly so that it will attach tightly to the wall.
Theoretically this means that the putty and hanging spaces are adjustable but it could lose its sticking power with too many moves.
Secure it in place on the wall with four l shaped hooks also called square bend hooks on each corner.
A binder clip will hang from each of both nails.